What is the difference between a group buy and a preorder?

Group buys are unlimited, preorders have a limited quantity.

Manufacturers / designers often prefer the product to be available for purchase during their promotional period. All preorder products are already paid for and quantity are reserved for Qwertyqop.

While other vendors / global distributors may run a group buy for the product, we at Qwertyqop strive to have the product readily available for purchase as an instock product, otherwise as a preorder as the designer wishes.