I've got a dirty secret. I prefer playing as DM than as a player. The reason is simple...I don't like waiting.
When I'm a normal player, I have to wait for my turn. Depending on the number and quality of players (and I've been involved in an excessively large group with a few slowpokes in it.), that can be a lot of down time.
As a DM, every turn is my turn. Sure, it's harder; I've got to keep a bunch of people from getting bored, and I've got to fit a plot into the player chaos. I've got my faults as a DM, but I'm getting better at it. And I'm never bored. Frustrated and angry at times, but never bored.