Possibly an annoying question, but how much would you pay for a slightly used Moby wrap and a used glider (some slight staining on the cushions, but still pretty good condition)? My sister wants to sell me these things and I'm interested in buying them, but she refuses to name a price. I looked on craigslist to try to find an "average," but it's all over the map. I want to offer something that's fair to both of us and I'm frustrated!