I'm in the "steam deck that I never use" camp but it's because I've been too lazy to take a Saturday to repurpose it into a dedicated console piracy device, it turns out I hate playing basically any PC game "on the go" (their touchpad-thingies seem to please some people as a mouse replacement but I find them entirely unusable), and it's just weak enough that I've found it worth keeping my old gaming PC around for now for 1080p+ gaming at OK quality & frame rate (and if I've got that plugged in, why plug in the steam deck?)

For me the Steam Deck proved to me that Linux gaming was viable (finally! I've been trying since the days of Unreal Tournament being a current game and having an official Linux binary, LOL) and that I like the idea of an official Valve device, but that I needed a little more power and a desktop-alike form factor to reach a point of "good enough" for me (well, portable would still be fine, I just wouldn't use it that way so it'd be better if I didn't have to pay for the extra parts or have the added complexity and jank-risk of a dock)

Like if my gaming PC broke I would't replace it (at least not for quite a while) but I would plug my Steam Deck into my monitor and start using it again, it's not that the device is wholly useless to me. It just wasn't quite a fit for what I do & want, it turns out. I do use my gaming PC, and that's what a Steam Machine would have replaced. I even have Bazzite on there so I for-sure would have used the Steam Machine, as I basically have a somewhat rougher-edged (and way bigger, with obnoxious "gamer light" horse-shit all over because that's hard to avoid for some reason) version of it already.

Fun projection, there are three steam decks amongst my roommates, all three of them use is basically daily.