because Vince McMahon ERRRRRRRRR David Stern wanted celtics vs lakers for ratings and money end of thread
ever since the 'miraculous' dealings that led to LA and Boston going from irrelevence to superteams overnight at the same time, it has now been (barring the garnett injury in '09), THREE STRAIGHT LAKERS-CELTICS FINALS.
im sure it was all just a coincidence though ...

the fucking nba is all a marketing gimmick now. hence the 'one hour special' Lebron set up tomm to 'announce his decision to the world'...oh brother.