Everyone I know that wants one of these has been able to get one. Yes, you have to put in a little extra work to get one, but they are THE hot toy of this holiday season. They are out there, but you will have to hunt harder to get one. Notice I said the word "toy". That's how it's viewed by your typical consumer. Just like Cabbage Patch Kids, Tickle Me Elmos, Beanie Babies, Hatchimals, and (of course) the NES Classic, everyone is caught up in the holiday hysteria trying to find one.
Honestly, I tried to find one myself, but after half-lazily searching for a bit I decided it wasn't worth the trouble and (yes, I'll be that guy) I built a Raspberry Pi instead. I still have my original SNES, and a modded Wii, and a ton of ROMS dating back years, but I do understand the appeal of having something turn-key that will play some games out of the box for people that don't have access to all that.
Frankly, I'm happy for Nintendo. They are kicking ass!!! They are staying relevant in the minds of not just gamers, but casual consumers as well. The more demand for stuff like this, and the more our hobby will thrive.