Well, the badges on that set are Shelbyville. That is the first complete Shelbyville set I have ever seen.
I have seen pieces before and possibly another set on another forum but never a complete matching set like that in that condition.
Many people probably missed that on the original auction and that is why they went for that price.
Other then that he has priced them based on the store and there are many ways to look at selling on Ebay.
Firstly items in stores have cheaper listing fees and higher final value fees and it is common for things in stores to be priced higher.
A set like that would not have a selling history, so its value depends on who really wants it and he probably is testing the waters.
I will on occasion put things in stores at a price higher, because I have no idea what it is worth. Then as "watchers" start to appear I drop the price or send it out to auction.
Yes, Stewy has a lot of stuff he is selling and he does buy a lot on Ebay. To keep things in the Ebay store is rather cheap per month and you just never know who has the money or will pay the price.
It is all part of selling on Ebay... If it was all priced right, he would have nothing to sell!
David