Everyone should use switches. Because I say so.
I have only bulbs installed thus far. It has worked out just fine. The colored Hue bulbs and strips of course need no switch, and elsewhere I have the Cree white bulbs that also need no switch.
Alexa has become my switch.
We have lots of people coming through our house all the time. Three housemates, plus our friends and family, plus medical aides. Alexa is our preferred control method, and everybody likes it and uses it. Hearing someone else talk to it is no different than hearing my housemate and his friend down the hall yelling at the TV as theyāre gaming. 
@bamarayne , for example, has about 12 kids and has Alexa devices in every room used as intercoms, music players, and home automation controllers. I doubt if the Alexas add much to the general decibel level.
So again, different things will work for different people.
Thatās all?
this x 10!
Iāll bet the relative saltiness of the language used in those two cases is significantly different.
My two words are: āNo Neutralsā.
Smart bulbs have been an incredibly flexible, valuable, and easy option for folks in old houses like mine.
Plenty of reasons to have color changing light bulbs beyond a āgimmickā or ambiance (plus as @DParker points out, the fact that you consider color mood lighting to be a gimmick doesnāt mean everyone else in the world does). For example, you could set a bulb to flash a certain color in response to an event (e.g. a door opens, movement in kidsā room when theyāre supposed to be asleep, anything really).
And thereās a thread for thatā¦ 
Amazing whatās possible when one enters a few keywords into the forum search bar 
The forum search bar is pretty hopeless, in my experience. 
However, the quick browse lists in the community ā created wiki are fast and easy to use. In this case the one about use cases for color bulbs appears on both the āget startedā list and the ālightingā project reports list. 
In particular, the āget startedā project reports list tends to hit the most frequently asked general questions that people new to SmartThings have. Lots of good stuff there. 
This.
If I had neutrals, the switches/outlets would have been my route. But frankly, Iām finding no need for them. Smart bulbs do turn on/off at the switch, in expected fashion. If the bulb does not come on when you throw the switch, it means the bulb was off by āsmartā control and youāve just flipped the switch off. Throw the switch once more, and the bulb comes on.
Itās really not that complex.
From what Iāve read around here, flipping the switches regularly on a circuit with smart bulbs may not be a good idea. Every time the switch is flipped on, an initial rush of current can damage the radio in the smart bulb over time.
I never turn those switchesā¦ but Iām not the only one who lives here. That said, she also is good about it for the most part. So that leaves company, and Iām not gonna give the instruction sheet to every guest.
I think everyone runs into that. I try to minimize it with a combination of switch covers and remote switches like the lightify dimmer switch. Also probably not the end of the world to flip the switch on a smart bulb.
Thatās why I went the smart switch route. No instruction needed 
Iām very thankful I live in a newer house with neutral wiring
I have all enclosed fixtures in my house so the smart bulbs are not really an option. I tried using regular LED bulbs and they blow out in a few weeks due to the heat (Iām assuming).
Iām buying some switches for the bedrooms and hallways to hopefully make up for this. Using HUE bulbs in the lamps, where available.
There are a number of dumb LEDs which are made for fully enclosed fixtures. Cree has several models you should be able to get it any Home Depot. Phillips and Feit both have models as well, although you may have to look harder to find those.
Home Depot often has the Cree on sale:
As far as smart bulbs that can go in fully enclosed fixtures, there are one or two. I think eco-smart has one but Iād have to check to be sure. And Cree and has them in their Cree connected line.
Cree has done a lot on heat management and holds a couple of patents in this area.
Ideal for use in table lamps, sconces, totally enclosed fixtures and other general lighting applications
I have 10 of the Cree connected bulbs. None are in enclosed fixtures but I do have 2 in recesses cans base up. They have been in service in my kitchen several hours a day for over a year. So far, they are so good. In fact of the 10 I have had one bulb fail. Cree replaced the blub without question within a week.
Thanks a lot for the reply. Was really disappointed when I also found out my switches have no neutral wire!
Was able to find a few bulbs rated for enclosed fixtures made by fietā¦ hopefully they last more than a few weeks as they were quite expensive and did not quality for the save on energy rebate.
I started out with zwave switches but I was limited in where I could use them because my house had no neutrals. I started adding hue bulbs and the hue battery powered dimmer switches. They are ok but less than desirable. I had to buy plastic covers for my existing switches so people didnāt accidentally turn them off, and I ended up with an extra set of battery powered switches stuck on the wall beside them. Looks very ugly. Plus I use bigtalker to have my computer announce certain things and with hue bulbs the delay has grown to a minute or more. Iāll turn a switch on and bigtalker will announce it 90 seconds later. Pretty much have to disable it for any hue items.
Then I discovered lutron caseta. No neutrals required and they now integrate fully with smartthings. Response time seems just as good as zwave. Anyone else with the no neutral issue needs to look at these. I just wish I hadnāt drilled holes in the walls to mount those hue light switches because Iād get rid of them otherwise.