Just wanted to share an observation to get a sense of whether others have noticed this too--or whether I'm wrong about it. My main use for a computer is writing, and I'm finicky about keyboards. I have often returned two or three specimens of a new computer until I found one with a keyboard that felt just right. I like the new rMB keyboard, but I've noticed quite a bit of variation among the specimens I've tested. In different stores (Apple and Best Buy), I've come across 4 silver models, three golds, and three space greys. Without exception, the keyboards on the silvers were always noticeably softer or less firm/stiff than on the other two colours. I bought a space grey from BB and found the keyboard much stiffer than any rMB I had tested. I then bought a silver and compared the two. It was much less firm/stiff. I then bought a third model (OCD taking over at this point!), a space grey, and compared all three. Although the second SG was less stiff than the first SG, it wasn't as soft as the silver. Returned both SGs and am content with the silver. But a space grey rMB was my preference. I'm holding on to the silver because I'm inclined to think at this point that only the silvers have softer keyboards than the others. Am I imagining this? Has anyone else noticed a difference with any consistency? I know that physical positioning make a difference. When testing stuff at the Apple Store, all rMBs feel much stiffer than any rMBs at Best Buy (which showcases them on a table with a lower height...). But even taking this into account, there seemed to be a consistent pattern in my observations.