MPex -> Lost most of its trading volume (stocks) -> going down
Still more trade than the sum of all others, for one.
The fact that it won't list bullshit "assets" (such as the Asciminer passthroughs) isn't really a valid objection.
...blah blah blah...
If on the other hand you have a legitimate business you have no chance making it outside of MPEx. This is a point of fact, not a point of argument: there have been bet sites coming and going for about two years. Once one listed on MPEx that was the end of that market, BitBet now dominates it. Same with dice games, same with everything else: kids can play around and pretend they're doing things until the adult exchange lists some adults...
Sounds like I should get myself listed on MPEx so I can live forever and dominate over everyone else that didn't list themselves there.
I hope you could hear me all the way up there on your high horse. If not I'll be glad to get a step-ladder and/or a megaphone.