Are you still planning on taking 35% of markup? I commented in a previous post on HN that I thought that was too high for the value you're adding. I don't see this discussed on your website. There is mention of a "wholesale price". What factors determine the wholesale and retail price? Also how do you handle returns/refunds/exchanges?

I still think this has the potential to become a great service, but I'm not convinced you understand (yet) the pain/problem that you've built a solution for.