"why don't New York and Boston and Atlanta and L.A. and Chicago and all the other fatcat teams"
Been like that for 80+ years, why change now?
parity stinks...
Depends on which side of the line you're stuck, huh?
Parity really makes the NFL suck, right?
Well, baseball's parity problems are not something that have always been around, but a recent result of free agency. Simply put, most teams can't afford to sign the best free agents, who almost always wait for the highest bidder. Then you have the Yanks, who can handle contracts that no other teams can, which helps them out in regards to trade.