Specifically the form factor. I have a lot of nostalgia for the GBC and SP, and the smaller size means it’s much easier to carry and whip out while traveling. Currently, my Steam Deck is used for when I’m on a long (6+ hours) flight or when I’m staying somewhere for a weekend. I don’t feel great about bringing it out while taking a bus or train, and it’s a bit much to bring out while sitting at an airport gate for 45 minutes.
That being said, I would hate to split all my saves and progress between the two systems, so maybe I’ll just remain on the Deck.
Interesting take, I think my Deck is a great size and it easily fits in my shoulder bag, I bring it everywhere. Don’t have a want for anything smaller honestly, it feels so good in my hands, anything smaller just gives me hand aches after a bit. But I can understand your perspective.
I’m a shorter dude (5’8"), so while I’m in love with my Steam Deck, it’s definitely a little much for me sometimes. Heavy to hold up, and I carry it in the OEM case. That being said, I’m a HUGE fan of the new case and basically only use the inner case, leaving the outer shell at home.
