McGuire is not airdrop. From my experience it depends on the base you go to on whether you go airdrop. The big multi-squadron bases have an airdrop mission, so does PACAF, but the single squadron CONUS bases don't (unless someone can correct me on this, but I am pretty sure).

When I was at McChord I was one of the unfortunates to get forced into airdop. Sputnik hit the nail on the head, it is a currency/proficiency thing, at least for me and my buds. I liked the flying, just didn't do it enough. And on top of that, it is a ton of more currency to keep up with, as if the 17 didn't have enough already.

I don't think it makes sense to upgrade everybody, IMO. Also, I can't see that it will hurt you per se if you don't do it. However, I was always told to get as many quals in the jet that I could if I wanted to get on the fast track. I assume that is still the case, especially with the WIC now.