Seems like the sort of thing kleinbl00 would enjoy but already know about.
I realized I should write more. Basically, it works slightly like reddit etc -- you post cool retail items and people vote on favorites so they rise to the top. Difference: votes are hard-and-fast pledges to buy the product if it reaches a certain price drop. Once enough people vote/pledge, massdrop talks to retailers and explains what's going on, they do a bulk order, cheaper, everyone's happy. Currently the products are pretty niche/expensive but I just bought two pairs of designer shades for 24 dollars.