whats a great vacation spot for group of girls in their 20’s. great night life/ beach, yet not too expensive?

I keep hearing about Cancun or Cabo San Lucas Mexico.. Is that the only fun, partying place to go?

If i choose some where else will it be the same cost as mexico? (so will it be worth just going to mex. instead)

Also, we might go in the summer instead of spring break to save up some more money.

We are lookin for all-inclusive. (does that have airfare included as well??)