The basic difference between Resale and Consignment is that with RESALE, we offer to purchase your items outright; whereas with CONSIGNMENT we attempt to sell the items on your behalf and you receive a percentage of the sale price, only after the items have sold.
The benefit of resale is that we assume all of the risk, and you get paid for your items up front. There's no sitting around waiting and wondering if your items are going to sell.
The benefit of consignment is that you may earn more money for your items in the end; however there is a longer waiting period, and there are no guarantees that an item will sell.