I must be missing something. They look like pretty ordinary keys me—white legends on black, standard cylindrical profile... Are they really worth what you could get an actual MK for (a pretty nice one, actually)?
Again, it's nice that they're DS, but you can get many DS key sets for much less.
I'm not trying to be negative about anything here. I'm just wondering what the attraction could be.
Sometimes it's about compatibility. For instance, the Massdrop set covers many layouts that buying a fullsize keyboard wouldn't allow. 1800 layout, 65% layout, HHKB, ISO.
Also, many people see the original cherry legends as iconic and therefore highly sought after.
Are the 140 or so plastic bits worth $100? Probably not. Is a GMK set with a lot of layout coverage worth $100 to people in the mechanical keyboard community? Yes.
I got my set the other day as well. No idea what I'll use them on yet, but maybe on my silver M60-A. Classy black on silver.