I don't actually have a lot of time to spend gaming, but I do want to stay up-to-date on gaming as a "technologist". So I do have pretty powerful machine learning kit that also happens to work well for gaming, including some VR headsets. And of course my kids don't mind if I push the last generation kit to them, once I get the newest machine learning hardware tax reduced for my business use.
The potentially rather novel use case for the Steam deck would be to use it not sitting down on a couch, but to take advantage of its motion sensors, gyros etc. to move the console within the came, almost as if it was a VR headset. So instead of pointing to the monster via the joystick, you'd point the console at the monster's head and then push the kill button and use the joystick only to swivel your head.
At that point the Steam deck would have had a real USP.
But from what I've gathered in the mean-time it's really just a PC tech based console with a terribly small screen when I'm used to either a big 4k screen or a high-res VR headset once I do find some time to play.
And the secondary use case as a Linux or Windows workstation once hooked up to an external monitor, doesn't seem to receive much love (docking station fate up in the air) nor make too much sense when equivalent or more powerful ultrabooks are becoming available for the same price.
I'm glad it's working for you, but not convinced even my kids would give it serious usage once I'm bored with it. And when it should finally come, I'm sure its resale value will be too low for me to stay waiting.
And without a successor already announced, I just see too much of a risk that Valve will abandon the platform, much like all their other hardware projects (Steam Controller, Steam Box, Steam Link, Steam VR).