MK9 has been dead to the competitive scene for quite awhile now. Everyone jumped ship to Injustice and even then Injustice is probably on the lower end of the popularity scale.I don't care honestly, I like Brawl and I don't like Melee and I'm looking forward to the new Smash.
Want a competitive fighting game? Get Mortal Kombat or Street Fighter.
Melee/P:M is a decent competitive game, it has some really arbitrary rules but it's there.