I have the Boba 2G. To me, the only the reason why I would pay extra for the 3G is if I was going to use it with a newborn. The other features would just be bonuses. That said, the only feature that appeals to me is the built-in pocket. I've only ever used the hood once and I don't think I would ever want to clip a diaper bag to myself/the carrier.
If you're already using a Beco without the bells and whistles, I'm sure you'd be happy saving money getting the 2G.
Jennifer
SAHM to DD1 (11yo) and DD2 (5yo)