I understand, I've always been good with my watches, few bumps here and there..but I can just picture walking through a doorway hitting the watch and leaving a nice scratch on it. Knowing me, it's inevitable(That first bump is going to hurt!)
Best Buy had the same one you have, no aluminum. It was going for $70. The Best Buy near me has the worse selection when it comes to anything, especially when it comes to Apple products. They had a few Zagg screen protectors, cheap - but overpriced - ugly bumpers also.
Mine IS aluminum. It's apparently a fake from China. Looks great, so I don't mind. It also only cost me $23.99. So that was a bonus.
Saw the crappy bumpers and the screen protectors, which apparently peel off quickly.