Well, I look first at the reputation of the seller and the returns policy. But after that, sure, as long as they all have the same model number. (It’s OK if there’s a different suffix on the end, that just says what box it should be put into. But the main number should be the same.)
Also, you may not know that Amazon is not always the lowest price for Z wave devices. So it pays to shop around.
Gocontrol devices, in particular, are sold at both Lowe’s and Home Depot and you can often get a cheaper price by shopping there just with the regular store coupon for 15% off or whatever. Best Buy also carries some GoControl items.
You can also check the deals category in this forum