Often the stores are pulled together on a budget and take less commercial locations or as more commercial previously unattainable spaces now become more readily available.
The surge in the pop up stores must be linked to way we shop now, not everyone wants to be trawling districts with the masses, buying the same generic pieces. By placing a shop let's say in Hoxton, London you are tuning into those very people who can instantly self-promote a brand. It also works for the label being able to test short experimental product runs, inviting collaboration for example. You only have to be in E1 on any day of the week to find the next fashion house having a sample sale.
Campaign are currently involved in two pop-up stores both for successful brands and are hungry for more.