I will almost definitely buy the next Nintendo console day-1. Multiple reasons: one, I have more money now so I should be able to afford it by then. Two, I think they'll do a better job with their launch line-ups after seeing the importance of software with the 3DS and Wii U doing poorly without games. Three, someone has to support Nintendo and I tend to pick up for companies I feel are the underdogs are in the grand scheme of things; not that I don't support Sony or Microsoft, I've bought quite a lot of PSP and PS3 and PS2 games and even a few Vita games and 360 games, but Nintendo feels like it's a much easier company to hate on and quite honestly I don't feel it's as big as Sony or Microsoft; in terms of what they do, they're a focused gaming company and their hardware reflects that to an extent as they don't have as many "general TV entertainment" features as the other "gaming" consoles on the market.
I also support smaller developers/publishing companies assuming their products are good, even if I'm not a fan of paying premium for items. Sometimes it's important to shell out the cash if you want to show support and continue to get good things. If I'm always buying used or waiting on price drops I can't really complain when games don't get sequels or sales are poor or whatever, haha. Or I can, but I'd look like a bit of a jerk for it, XD.