The major difference is that we mainly sell product that can easily be purchased online for cheaper and we are aware that our customers are here because they desire the added value that being able to see and try clothes brings.
We spent a lot of time thinking about macro product management issues (in zynga like ways, but with less malice, and more desire to make lasting value) such as whether single horizontal site vs vertical category sites, minute pricing detail of different types of formats, cross border trade policies and their effect on the marketplaces.