@gamingonlinux physical keyboard is a huge benefit, but yeah, I agree with you about quality and support. I was hesitant to get a Steam Deck at first because I was expecting them to announce an upgraded model at some point as most console/handheld manufacturers often do. A "Pro" model or an OLED screen or whatever.
Then I stumbled across an article that said a new model of Steam Deck wouldn't be coming any time soon, and was certainly at least a couple years away. Ordered my Steam Deck the same day.