Steam Deck is at sale: 10% to 20% off

Yes, I've been using it as my PC for about a year now, I do game on it but my primary reason for purchase was that it was just a great deal on a Linux machine.

No, you don't need two decks. You need:

• Steam Deck
• USB-C Dock with power delivery (for example, the official dock)
• 1 to 4 game controller (most bluetooth controllers will work fine)

However, there are not very many "Couch Multiplayer" games on steam. Most multiplayer games are online.

The anti glare screen is amazing in sunlight. However, if you are like me and have very light coloured eyes, you probably also rely on sunglasses. The anti glare screen will not be compatible with polarized sunglasses. You will not be able to see a single thing.

Does the eMMC version allow installing an NVMe drive?

Yes, the only hardware difference between the different version is really only the screen and the drive it comes with. You can technically buy the 64GB version and replace the screen with an anti-glare one at a later date, as it can be bought as a spare part for not much.

Personally I got the 64GB some time ago and am still happy enough with just an SD-card with good speed and decent size. I suspect that will change down the line, but right now I'm happy.

The eMMC one does support installing an NVMe drive, and from what I've seen the Deck can't really support more than PCIe 3.0 speeds. If you find a good deal on a PCIe 4.0 or 5.0 drive it will still work but there's no reason to spend extra on a newer drive.

You can just buy an aftermarket anti-glare screen. They are cheap.

You can change the SSD by yourself but you'll lose waranty. There's a noticeable speed difference between the eMMC and NVMe versions. There's no noticeable speed difference between the NVMe versions.

IMHO if can afford it and have a few technical skills buy the little one and install one of these. You might even want to wrap it in one these (there's a real leather option too) or these or replace the joysticks with these (can't get drift and have a much smaller deadzone).

The anti-glare is definitely worth it and it's also very noticeable outside. The other option is that you could just upgrade the screen from ifixit if you're also going to be upgrading your storage anyways.

All versions of the deck allow you to upgrade the SSD. There's actually a lot more vendors selling 2230 nvme drives now. I'd recommend staying away from SABRENT Rocket since their support is nonexistent and they also have a high failure rate. The Corsair MP600 mini and Micron 2400 is a better option.