If this winds up like the DSi i wont mind too much, tbh: my 3DS can still play smash bros, and will be receiving it's nfc connectivity early next year.
Though, I did just buy my 3DS xl in december after the 3ds dropped: I waited saying "no, there will be another, larger one"
my waiting paid off in the form of the *new* 3DS coming out.
I'll only really feel put off if games start to look and play significantly better, or if the N3DS starts getting good exclusive games, or preferential treatment in the eShop. I really cant afford a second 3DS and I'd like to buy games from nintendo.
At least the WiiU has a good eShop if you also account for the vWii, and doubly so with the homebrew channel. N3DS does seem like a cool toy, and it's absolutely a worthwhile upgrade if you can afford it.
I just wish I would've gotten more than six months from my console before it was referred to as the "old" 3DS by proxy.