Metal enclosure + cheap black cd drive for $75 (not including shipping) or plastic optical bay + sleek apple-matching cd drive for $195 (not including shipping) functionality or functionality + good looking? I like how the plastic bay is lighter than metal one (significant weight difference? not including the SSD itself) and pretty cd drive to match the mbp. It's 120 bucks difference between both options. I like the second choice better. How about you?