Well that went south quickly...
I've flown both, including a certain little twin with Huggy a few years back.
To the OP: you're right, it isn't like real flying. However, a lot of dudes do it in the guard/reserve side because the mission is growing, and so there are tons of man days to get paid with WHILE they build hours at a regional.
On the flip side, the active duty tanker community (and most other airframes) are crying for help from their guard/reserve bros as well, so there is quite a bit of flying to be done if you're willing to deploy. The EARS (deployed squadron) would only be too happy to have guys like you come out and build experience while living in the five-star accommodations at the CC at a certain desert locale.
If you have specific questions about RPAs, PM me. And yes I did eventually leave RPAs if that says anything...