I'm not going to buy any new expansion packs because I'm waiting for Zoo Tycoon 3! So Im not getting that excited for Marine Mania. I mean did'nt Zoo Tycoon 2 come out just a summer after Complete Collection?
Actuallly ...
1) There has been no confirmation that there is going to even be a ZT3.
2) There really isn't much they can add on a completely new game : the graphics are up-to-date , the game engine is fine , etc. there is nothing to give in a ZT3.
When CC was released it was 2d therefore not up-to-date , there were tons of glitchs , etc.
I really , reall want MM2 it sounds so wickedly awsome. I can tell that I'll have lots of fun with beaches. Also there should be away to let guests swim in lakes you have created. That would be amazing.