It's by now impractical for any serious company contemplating being listed in BTC to forego the significant capital available on MPEx in order to favor a different venue...
There are too many examples I could bring up which would inform a more restrained enthusiasm. But there's no point in bringing them up if you're wrong on logical grounds;
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.
are you really claiming that one of the primary reasons BitBet was successful is because it listed on MPEX?