I resisted for so long, but the desire has overcome me. I need a B bag. I am specifically looking for a medium size one in cornflower blue. Do you think it is possible to find a used authentic bag for $1000 or less? My birthday is in a few weeks and I need to start begging and pleading with my husband now. I am totally new to Balenciaga so I am not quite sure where to start my search (other than eBay, of course). Please educate me!!!