The average cost for a kimikiss episode is probably even far below the already shitty tv animation standard, considering the crappy level it had so far. It runs at 2.55am on some satelight station, the slot is dirt-cheap of course. Seiyuu aren't some kinda superstars whopping the money, in fact only the poor genga and the even poorer douga get even less money (which sucks considering they do most of the needed work, but animation business never was fair game). Taking that in account they probably already make profit just by DVD sales and those aren't all they are selling, after all it's a big franchise.
That said, I really wish those jap fags and the few wannabe weeaboo would stop buying all that shit, so we get less of such crap and more stuff like Kemonozume and Dennou Coil.