New sets ever sold out fast and gone?

hengchibrick · 2013-01-10T01:10:44.000Z

Are there examples of new sets that were sold out so fast after release and the price just went up immediately within months of its release? I found it is hard to find newly released sets like Mr freeze Batman set and Golden dragon set from Walmart, target or toys r us. I am wondering if I should stock them with retail price from Amazon? Or should I wait for discount?