>>13
They're pushing ahead more than "a little bit." My last host's offering was an order of magnitude less: 75 GB a month for $10, and that was about the best I could find (as of late 2004) from any place that wasn't obviously fly-by-night.
Of course, in the terms of service for these overselling hosts, they always make sure you can't actually use all that bandwidth, by forbidding "download" sites, using the account for storage, combining several accounts and using them for one site, etc. Some of them even forbid you to store porn. If the bandwidth was really yours, it wouldn't matter how you used it.