You can really make some money off of flipping sneakers. Nike Foamposites retail for $220 and can be flipped for around $400 on up. Especially the ones that have colorways that are in high demand. Retro Jordans can be flipped for around double their price but some of the hotter releases can get more of a profit. I don't collect sneakers to flip them but the fact that so much money can be made off this is amazing to me.