The Steam Deck looks pretty cool, but I recently starting using an existing Valve product that nullifies most use cases for me: Steam Link.
If you want a Steam Deck you should first try Steam Link. If it doesn't meet your needs (gaming requiring internet, mobile internet adding too much latency), then the Steam Deck becomes attractive. I hadn't considered this when evaluating the value of the Steam Deck and I suspect most others haven't either (judging from the lack of Steam Link coverage).
If you want a Steam Deck you should first try Steam Link. If it doesn't meet your needs (gaming requiring internet, mobile internet adding too much latency), then the Steam Deck becomes attractive. I hadn't considered this when evaluating the value of the Steam Deck and I suspect most others haven't either (judging from the lack of Steam Link coverage).