just read up on MS's viewpoint on servicepacks....not wanting to spoil...
Of course, who knows how concrete their view on that is right? Packs are good for people on dialup . Even if packs are not needed, it can get someone to buy it just because they think it is better to have than have not...marketing. Like trying to repackage old games with expansions.
Sure I'm all set with 2 legs...but why not wait out for 5 more legs right?