Mines too but they also have some of the $10 ones on clearance. You might want to check around. There is a thread somewhere on here with the links.
Edit: Sorry, it’s the contacts and motion sensors that are marked down. If you buy 2 at $23 then add something to equal $50, you can use the $10 off of $50 to bring them down to $18 each…
ebay coupon code PICKFAST on the mobile app for 15% off before 8 pm eastern today. stackable too. Just got a carpet cleaner direct from Hoover for 30% off total.
Amazon has finally added a “smart home” category with a new “smart home deals“ page which is pretty nicely organized by device class, but definitely doesn’t have all the deals posted yet, so I think they are still building it out.