Where do you live? If you live near Reston/Herndon, you must go to N'used. It is an upscale consignment store and they are very picky about the quality of the merchandise. I have consigned stuff there any they will definitely turn things away if it isn't in perfect (or very near perfect) condition. They always have an assortment of designer bags for under $150. Check it out! You may want to call ahead of time to find out what they have in stock at the moment..... Good luck!
http://nusedfashions.com/