I also don't see the increase reflected on their site today, but it was only a matter of time before enom's prices were increased.
Several years back (for those who have been around a while and can recall), you had to pay $70 (for a 2-year registration), from Network Solutions or Register.com. The period, between then and now (with the new discount registrars), allowed a LOT of small players to come in and create a nice business.
The newbies and small players today will likely be a bit more selective, and the bigger players will still go for much the same number of domains, regardless of a $30 or $60 catch fee.
The business of domain "tasting" or "kiting," and the increased participation of registrars, playing the domain game, has also made a huge difference.
As a result, I believe the bigger players will get more of the dropping domains. Some of the smaller players will adjust, by being more selective - and, overall, this should raise the prices of domains on the aftermarket.
In another 3 to 5 years, the increasing catcher fees, increasing competition, registrar participation, and who-knows-what-else, may make it almost impossible for any new players to get into the domaining business.