Actually we at SWA fly the -200/-500/-300/-700.
All the jets are pretty much the same to fly. In DAL we are no longer teaching the -200 differences. All the -200's have been moved to the HOU/DAL bases as there are only about 26 of them remaining.
Recurrent training is done in either the -300 or -700 sims, no one does recurrent in the -200. Come to think of it, we don't even have a -200 sim.
There is a -200 qualification program for the folks that want to stay current on the -200, other than that unless you are HOU/DAL based you don't have to fly normally.
Hope this helps,
HC