Anonymous 10:55 made a good point on the 10/15 post: Frame companies aren't offering many differences these days other than image. Basic geometry is set, materials are (for the most part) the same, and (other than Sunday) so is the shape/diameter of tubing. After decades of experimentation, frame design is more or less set. You don't pick an FBM over an S&M because of your style of riding, you pick that way because you're from the East Coast and not the West. Or because you support fire, beer and mayhem. In a way, BMX has finally moved closer to skateboarding, where the main difference between one company and another is the graphics.
Which, if you think about it, doesn't seem like a terribly sustainable model. In skateboarding it is. Decks are disposable -- one might last you a week or a day or at MOST a month or two before you break it. Ideally, even the lightest BMX frame should last six months to a year to a decade, provided you're not hucking yourself down triple sets. And then there's the matter of the lifetime warranty, where every kid -- or at least his mother -- thinks they should only have to buy one frame ever, and that any damage at all is clearly due to manufacturer's defects. ("I was just grinding along and...") Regardless, even the most dedicated BMXer will buy fewer frames in a lifetime than a skater will buy decks in a year.
The answer? I don't know. It's the nature of companies to want to grow, and the nature of riders to start companies. The easiest way to growth is to offer everything, so you can be a one-stop shop and don't lose customers to another company when they want something you don't make. Or expand the product lineup to make up for revenue lost when your big sellers aren't so big anymore, or when other companies infringe on "your" turf. So you get ridiculous overlap, where everyone offers pretty much the same things these days -- plastic pedals, big two-piece bars, one-piece seat/post combos, sprockets, completes. And rather than innovate, (nearly) everyone just follows along, slapping their logo on whatever the next hot craze is, in hopes of shifting units.
I guess it works, or else everyone wouldn't be doing it. But for how much longer?