60% keyboards are for people who only care about their keyboard for gaming. The whole "gaming" trend has lead to so many products that are impractical (and often cheap), but look cool. Keyboards are a good example, but you can also look at desk chairs, where "Gaming Racing Chairs" have overtaken the market. I can appreciate the looks of that stuff, but you use keyboards for more than just WASD, shift, ctrl, and space, so why not have a keyboard that actually works for anything else. Hell, my friend just put together a Levinson rev 3, and sure it's sick, but he never uses it because it's only a 40%.