I'm starting to wonder how others play MP as well. Must be a hell of a close battle if you can't afford sending a mere warrior commander (no more than say 80 gp?) to the arena. If he dies then my opponent sent something even worse and lost use of that unit for one turn. If I win I get a better commander.
I don't think it's a big deal. Doesn't really have any impact on the game, save if people send their pretenders to duke it out. Perhaps I've got a bit of a carefree side. I usually don't play to win, just to have fun. Though I seem to win by endurance any way.

This game takes quite a lot of time and people get bored quick when someone seems to get an unbreakable upper hand.
In some games we all sent out pretenders with top gear into the arena in a sort of pokemon olympics.
