The thing you guys are missing out on, is that RR is still making all the money. They let Earthlink resell the service but pay a huge $$ cut to RR.com. Then whenever you call Earthlink for trouble, it must go through earthlink, then to RR for ticket issues.
You're paying a few bucks cheaper (for the time being, earthlink wants to hook you in, then raise the prices too!), to use a reseller of the same service. You still have to deal with Time Warner providing the wiring, and any issues will end up (eventually, at a lower priority) going from earthlink to Roadrunner.