Fiatboy,It depends on what state your in and if they have deposit fees when you purchase the can initially.
I used to think that most states charged a deposit fee,until I started reading these posts and seeing the various states that ONLY pay for cans at the scrap price.Now I am convinced that very few states have an organized recycling program to encourage recycling by making you "buy" the can to give you an extra incentive to keep them out of the landfills.
As far as per can value,I know there are 31(dry) standard 12 oz. size cans to a pound.So for a can to be worth $.02 the scrap price would have to be at least $.62/pound.
I know in Cali the state charges $.05/can under 24 oz. & $.10/can over 24 oz.The recycling centers are required to pay you at least this amount when you redeem them and they must(by law) count them out individually if you request and don't want to be paid by the pound.
However if you choose to go this route you forgo any scrap value that the aluminum contains,you are only compensated for the deposit you paid at time of purchase.
So even if you think the center is crooked and you don't trust their weights you still end up ahead selling the cans by the pound,because you will get more than the redemption value.
@ $.05/can X 31/cans/pound you would get $1.55/pound,but some centers pay up to $2.05/pound.Most of them only pay $1.75

.
But even at the high of $2.05/pound,that is only $.50/pound scrap value,When I see alot of you getting between $.55-$.65/pound cans

.
I can't figure why some of the midwest and east coast states are getting between $.15 & $.45/pound more than here

Any ideas?