Might the Long Tail actually reduce choice?

Might the Long Tail actually reduce choice?
Nick Carr notes a NYT column that suggests that if all content is “unbundled” and forced to fend for itself, the cultural products subsidized by commercial junk may go away. Carr writes: “It’s not a sure thing, in other words, that an a la carte menu will end up giving us the widest possible array of choices. Rather than promoting the creation of a “long tail” of diverse products, unbundling may end up pushing even more economic rewards to the “hits,” squeezing out a lot of the good stuff.” My take: unless he’s referring to the number of mediocre album tracks that piggyback on the singles, I think Carr is overestimating the amount of subsidization that actually takes place.