I got the 3DS at launch and I don't regret it in the slightest.
I was going to wait a year to get the 3DS but I got it right before the Price Cut (But with the Price cut thanks to Walmart.) so I was able to reap the benefits of the Ambassador Program without paying for it.
To be fair at first I didn't even get to use it that much anyway, but I still love my 3DS, though I kind of wish I could get an XL since my hands are starting to get uncomfortable on the normal model now.
Plus maybe by the time I want to get the Wii U there will be new colors, a Kirby game, and a good Paper Mario since Super Paper Mario.
I don't think there will be new colors honestly but we'll probably have some more big name titles for sure.