only get a steam deck if you're really interested in portable playing. You can build a better desktop from old parts. The steamdeck is an interesting device that's doing a lot for gaming via proton, but that makes tradeoffs for battery life and portability. If you're not interested in the portability just get a desktop. If you're interested in the portability but need a large screen, get a laptop. If you want a sega game gear form factor that can run steam games get a steam deck.