It's not that its a bad game or not fun, and I actually do quite well when I accidentally register for a tourney that I thought was PLO high.

The reason I don't like the (cash) game is because the house wins. At least at the lower levels that I've played, there's always 5 or more players to the river making insanely huge pots. Small un-racked pots are incredibly rare and because there's two pots to win (sometimes more if there's splits) they usually get the max rake every hand which means the house wins a lot more than in NLH