Absolutely. I preordered partially because I wanted to support them for everything they've done for desktop Linux gaming (I almost never preorder anything), but it ended up being a better product than I expected so I don't have even a little buyer's remorse.

I'll probably preorder the Steam Deck 2 as well.

Valve has earned my business, and they get most of my gaming money. I started using Steam when they released their Linux client, and I really started buying a ton of games when they released Proton. I've been with them every step of the way, and they've earned every penny I've given them.