Just an update here on a good seller. After purchasing a lot of scrappers from one person (and getting a refund, thank God!), I was a bit more careful of what I looked for on eBay. I found AngieJuly, who had pins reasonably priced, and they were in their original packaging. After seeing someone mention they had a good experience with her here, I ended up winning 4 separate auctions from her. Just wanted to say that I received all of the pins very quickly and they are EXCELLENT. No fakes at all, clearly authentic pins, and I got an excellent deal on everything, spending around $1.90 per pin.
I was planning on using all the pins for trading on our January trip, but I really love some of the pins I ended up getting (oh and all the pins in the photos she takes are the actual pins you are getting), so it'll be hard to figure out which ones I'm going to trade away!
I'm now definitely knowledgeable about scrappers, so when I do trade I will be careful in making sure the pin is authentic.