Why not? You underestimate the amount and quality of the games coming out alongside Smash U. The Wii U version has better visuals so far at the very least, and I'd expect it'd have a better Internet system seeing as though it's the more powerful of the two hardware-wise. Plus, it'd be very nostalgic. I remember sitting on the couch and enjoying a great game of Brawl. Now it's only good for tournaments, training, and laggy online (which is perfectly reasonable, the game's been out for seven years and has fulfilled it's purpose). This game will revive that feeling, especially on the home console. Also, it'd be perfect for tournaments or even regular competition. No need for Internet, no need for multiple systems, just whip out the game and play. The 3DS version is great as well, but the Wii U version is a must-have for me. Plus, this would help support Nintendo's Wii U sales. Besides, the character do appear a little more floaty in the 3DS version to me as well. It also appears a little less "fluid" than the Wii U version. I'll most likely end up buying both, though. The customization aspect of the 3DS seems interesting.