Who cares about a 20 MHz chunk of spectrum near 100 MHz? It's too narrow to be of much use to anyone but FM broadcasters, and the required RF hardware and antennas are too big for most two-way consumer applications. And there's certainly no shortage of VHF spectrum in general, now that most users have gone to 700 MHz+.

Ultimately, cognitive radio is the correct answer to all questions about how to get the most utility out of the existing spectrum. The only question is whether we'll get cognitive radio or unlimited fusion power first. :(