Tiles work good for areas where you just park a car, or shoot the bull with your buddies. Its not the product for a work area though. Even Epoxy won't hold up to jackstands, dragging stuff over it, repeated impacts, etc. Heck, CONCRETE has a tough time keping up with me.....
It all depends on what you do in your shop, and how often you want to repair it. I've labored over coating the floor for years. I came up with one conclusion. Let the oil stains, scuffs, dust, etc become badges of honor. In no way,shape or form, can my shop be accused of "posing". And the $1,000 I saved, will pay for the valvetrain for the bigblock.