I am also an early adopter and now absolutely wish I had waited. I truly love Mario, Samus, Link and the whole Nintendo crew as much as I love the Warner Bros. and Disney legacies, but the 3DS will be the last Nintendo system I purchased at its inception. I should have known better and gone with the DSi XL I was eyeing. At least it plays DS games in their native resolution.
This add-on is another money grab like the near useless Wii Motion Plus they already burned us on; Skyward Sword be damned. They will most certainly do a redesign down the line that adds the second stick; especially if it ends up being a big seller. The line they are currently towing, saying that they won't, is a great big lie. Monster Hunter is only really a factor in Japan, so the add-on honestly looks more like an attempt to fix a few of the system's flaws due the Vita more than anything else. It is also probably a stab at attracting more Western developers to the system by making the FPS genre properly playable. I know FPS games aren't huge in Japan like they are everywhere else, but you'd think they would have realized how well the first person perspective shows off the 3D screen. The genre also tops the charts in the US, which is still a very large market for the industry. It should have been a no brainer, but alas we have this. I also bet they include an extra battery in the thing too when all is said and done. It's so huge they had better!
Nintendo is losing their edge. The Wii U is just a great big trojan horse geared at getting you to spend another $250 on something that you will ultimately use mostly to play DS games on your TV. That is, if you spend the $10 on the games you already own on the Wii U VC of course. This is for when they take the backwards compatibility with the original DS cards out of the next 3DS revision of course. You know, the one with the two sticks and doubled battery life. The Game Boy and DS lines were just barely brilliant enough content-wise for one to deal with the multiple redesigns of the hardware. Now this business model is beginning to alienate both fans and developers alike. I know this lifelong fan is getting tired of getting stiffed by Nintendo.