The problem with epoxy is that unless you get it professionally applied, it only lasts about four years before you need to recoat. Professionally applications can last about 15 years, if that. Epoxy is great if you have an empty garage to apply, but if your garage is full of crap such as cabinets, tools, or other objects which are a hassle to move, tile is a better, more efficient option in application.
IIRC, the tile interlocks so there is no gap, thus spillage can be wiped up just like on epoxy. If a tile is badly damaged, you just replace it. With epoxy, you have to recoat the whole floor, this completely emptying your garage again.
Epoxy Pros:
- Cheap
- Easy to clean
- Looks nice if properly applied
Epoxy Cons:
- Must recoat every few years
- Garage must be completely empty to coat (including cabinets, storage bins etc.)
- Damage to the epoxy means total recoat
- Must prep the garage floor before application, which uses acids and takes several hours, often a day or so worth of prep
Tile Pros:
- Easy to install
- No object restrictions (Garage does not have to be completely empty to apply)
- Easy to replace if tile is damaged.
Tile Cons:
- A tad bit expensive
Oh, about cleaning up spillage, you can just rinse through the tiles to clean your garage every once in a while. Some of the racedeck tiles are non "free flow", thus making the spillage problem obsolete.