If you're going to visit Collector Square, I suggest you go to their website, look for anything you like, and if you find one, schedule an appointment with them. It's not a good idea to just show up because it takes a while to get something from their storage area. When I went there as a walk-in guest, I asked for a bag and it took like 20-30 minutes for someone to bring it out. It was a bit awkward because the place is small so when there are a handful of customers, there's nowhere to sit and you cannot browse their other items because only a handful are on display. So I was there just standing near the security guy. Also I was disappointed in the bag they brought out because it was really nice in pictures (very good condition accdg to them), but in real life it looked really worn out and sad.
I've sold a bag through them, though, and it was a breeze. They are very efficient.