I think MSE has potential, it just needs the right company to come in, armed with realistic expectations.
It's never going to rival Stansted/Luton overnight, but with the effort that's going in to the surrounding areas (Pfizer's expansion; Ramsgate's rejuvenation, etc) who knows what the future may hold.
I'd have to agree with the many postings about the transport links, over two hours to London by rail isn't good enough.
I for one hold optimism that the A319 in the circuit last Thursday becomes a regular sight in the not-too-distant future.