Come on man, sometimes consumers would like to take the chance and then go for it see what happens. It can happen (or not for some MR users, unfortunately). And nothing wrong with going for it and hoping on that.
$20 more than the same plan speed is considered premium over the one that is cheaper. We can't argue how premium $20 is, because hey $20 to you is a pack of cigarette or a cup of latte, at the same time it can also be the lunch money for a person.
True business are profit driven, but what I have suggested happened before. Qala (now bought over by M1) has done it before for residential service. I remember myself fast hand fast leg applied for the service when they opened up for it.
If you would want to argue thats in the past...and what about Viewquest? They give free upgrades to customers, and it was said that they reinvest the money into their network. If they are totally greedy and profit driven they wouldn't do the free upgrade.