Benefits of 650b:
Very few people have them. 1 point
Difficult to get rims, tyres, forks, so you can tell everyone how much of a nightmare it was to build your 'steed'. 1 point
Niche-niche-ness. 1 point
Spooky bikes have them in there line up, and Spooky are cool as ****. Lots of points
Haro bikes make them. Not that Haro bikes are cool, but Bob Haro was. More points
Guitar Ted doesn't like them. Lots and lots of points
Makes 29ers, 36ers look so old hat. points, points, points.
So there you go, lots of points which mean nothing, and I bet at SSWC09 there will be loads of 650b riders all trying to out slack each other, or growing beards, or pretending to ride drunk.