Tournaments are fine, but league play is a different animal: establishing a squadron, seeing your pilots evolve, fearing for their demise when their ship gets blown up, developing rivalries against specific players or squadrons, etc. is a surefire way to get invested in a game.
I have seen the rules published by Rekkon on TeamCovenant, and they are very, VERY good (Kudos to Rekkon). But not official.
One of the incredible features of X-Wing is the fantastic job they've been doing playtesting and balancing X-Wing... while there may be some discrepancies, overall balance has been a FANTASTIC feature of the game, one which must have needed a lot of work.
If there was to be official, published rules were to have had the same care about balance (since the base is sound, it would probably). It would be a very cheap way to add a whole new dimension to the game.
And boy would that sell miniatures. I don't know how much money my friends and I have invested in Blood Bowl/Dreadball miniatures, but it's made people publishing this very happy.
So there it is: would you be as "high" as us for official league play rules?