Nice, I'll link that later as well - the gsettings trick would have been great the first time I installed (trying to rotate the screen via tab and arrow keys was painful!)
I saw Jeff Geerling had a neat RISC-V machine with exactly the same form factor too: https://www.jeffgeerling.com/blog/2024/sipeeds-new-handheld-...
I like your point about the anchoring effect of the GPD price. I think that influenced me exactly as you say. It's a shame about the few rough edges; this is so nearly a very compelling gadget!
Do you use yours much having had it a while?