I doubt people will ever "WISE" up. They will just goto the next overselling, overloaded, 1.7 celery with 256 meg of ram. As long as htere is people out there cut throating each other then you will have overselling. You do not know how many times I have thought about placing an advert such as this:

10 gig space
200 gig traffic
all for the "STUPID LOW PRICE OF..... I AM GONNA TAKE YOUR MONEY WHEN I CANT DIDDY UP CAUSE I OVERSELL MY SERVICES $5.95"

Sorry had to get that off my chest