DH did our garage floor with epoxy. He decided to do it when he inherited a classic Mustang from his dad.
He spent two weekends using a grinder to remove the previous oil paint & stains- nasty work! I think we spent about $300 on the Benjamin Moore epoxy which seemed expensive to me, but it has held up great. I like it because the garage is easy to clean and no longer tracks dirt in the house. He likes it b/c he says it's better for the car- I could care less about the car, but it makes him happy....