I will buy it the day the first SMT title by Atlus gets released. 

If that is day one, then I will have it day one.

I'd have to say that I was impressed enough, just by the glorious praise and 3rd party support to make it a day-one purchase for me.  Which I haven't done with a portable since the original GBA launched in 2001. 

Top of the list is Resident Evil and Kid Icarus as of right now.

Hmmmmm

3DS....

Maybe they can bring back Red Alarm!!  Ha ha ha!!

Unless it all falls apart between now and launch I will be buying my very first handheld at or close to the launch date.  Mario Kart and Ocarina are must buys but looking at that line-up, I doubt if they will be the only ones.

At launch the 3DS will be mine without any doubt.

Games?OoT 3D,Mario Kart,Resident Evil,SSFIV.

Then,the others.

I'm going to get one at launch for sure as for games.... man the line up is pretty epic I'll get all the games I can afford but I'll list by priority.

-Metal Gear Solid Snake Eater 3D

-Mario Kart 3DS

-Star Fox 64 3D

-Legend of Zelda: OoT 3D

-Kid Icarus 

-Animal Crossing

-Kingdom Hearts (though I don't believe that game will even be close to launch)

-Super Street Fighter IV 3D

-Resident Evil Revelations (big maybe since only a CG trailer has been shown and it's using the same RE5 engine which I don't care for which might hint it's similar)

-Paper Mario

-Pilot Wings

After that there's a lot of third party support I might be interested in but in a lot of cases I don't think it'll be close to launch so not really worth mentioning at least until more info is revealed like De Blob 2.

yes i will, though i do hate launching of systems.

i like casually buying a system when i want and feel like i need to camp out or something for this which is a pain.  Would love to walk in day 1 and just grab a system at 5 in the afternoon.

But will be getting for sure the system and as for games will start with just kid icarus and would like some type of puzzle thinking mystery game like professor layton.  Then slowly work on getting the mass mess of games throughout the rest of the year or holidays/birthday

i'll get one once there are more titles that interest me.

I am buying one and I am interested in Mario Kart 3DS, Animal Crossing 3DS, Paper Mario 3DS, Starfox 64 3DS, Super Street Fighter IV 3D, Metal Gear Solid Snake Eater 3D, and PilotWings Resort..  I am sure I'll be interested in more once more are announced.

Yep will be getting a 3DS day 1 if I can!

The Legend of Zelda: Ocarina of Time
Kid Icarus: Uprising
Mario Kart 3DS
Resident Evil: Revelations
Paper Mario 3DS
Sonic 3DS

I've never been more excited for a hand held system

Yes, I'm getting Mario Kart, Pilotwings Resort, Starfox, and Kid Icarus for sure.