I bought it day one.
Would I have bought it had it not been for a great trade in offer - prob not.
Pilot wings was the best launch title for me. Though I stopped playing it far sooner than I imagined I would as it lacked the magic of the snes and n64 version.
Zelda by far is the best game on the device, but it's problematic. A lot of th new ideas such as gyroscope feature simply does not work with 3D on. The sweet spot for 3D to work is very small and requires you to keep the machine and your gaze fixed in the same position for it to truly work to it's best, therefore a feature of swaying and moving the handheld around to look around simply ends in the result of a fudged up ghosted view.
Battery life is impacted by the 3D and whilst it's nice to have, no game on the 3DS actually truly 'benefits' from it in any meaningful way - compared to the 2D implementation of the same game (3D turned off).
Zelda looks nicer with it off for example as it almost gives you some AA filtering with it off and it runs a 45-60fps, with it on there is some aliasing and of course frame rate drops to 20-30fps which isnt too bad - but it's a trade off. When accompanied by the other trade offs such reduced battery and gyro features not suited to 3D, then the chances are you are not going to be using the 3D much for long stints at the game. It therefore could be argued that the Major Selling Point of the handheld device is made somewhat redundant really.
As a handheld it's an evolution, but not necessarily a good one over the DSi. Unless we start to see software which truly benefits from the move to 3D without compromising it then the 3DS ultimately 'fails' in it's most important aspect, given the tradeoffs we have already had to settle for (battery life etc.)
Would I recommend folks buy one? Personally unless they get some decent trade in or reduced RRP it is hard to recommend spending 260 on the 3DS over the 120 DSi which has by far a better library of games and 4x the battery life.
Oh and the new protractible stylus on the 3DS is frankly rubbish to anyone other than the tiny handed leprechauns.
That all being said :- Super Mario on the 3DS could be the game that shows off the 3DS and goes beyond just being a 3D novelty / gimmick unlike everything else on the system right now.
I hope they will reduce the price by 100 by holiday / Xmas season, otherwise 260 looks even more ridiculously overpriced when the Vita hits retail starting at 249 with arguably far better specs and bang for your buck.