I always thing about buying the Ayn Thor.
I do have the money to buy it but I debate always if I’d use it more than a more general device like my phone or my already existing SteamDeck.

On the one hand, it’s way more portable than a steamdeck but 300€ isnt free money either ;-;

My recommendation: If you’d buy a laptop to play on the couch, etc. etc. that isnt your desk with your PC, than a steamdeck might be worth it.
If you primarily play mouse games like shooters: It’s complicated. IMO it’s more meant for gamepad games or at best in a dock with a mouse/keyboard separatly.