I've had occasion to pass by the local thrift shop several times over the past few weeks and noticed that almost all the cars parked for the thrift shop are large, new, SUVs or pickups. If they can afford big new cars, why are they hovering around the front door waiting for it to open? My best guess is that they go in and scarf up the good stuff and sell it on Craigslist or Ebay.
Side note: A friend would buy anything made of denim, take it out to the range and fire one or more shotgun blasts through it. Sold for lots of money on Ebay as "Shot Wear".