JazZeke wrote:william-james88 wrote:To answer the main question, it's pretty easy. Have more supply than demand.
For instance, there is very little demand for redecos into niche characters that people don't know don't well. So thats why Quake and Krok shelfwarmed pretty hard even at discount retailers.
There is a greater demand for Optimus than Megatron, so since siege Megatron and Optimus ship in the same case you need a lot of cases to satisfy the demand for Optimus toys, but you are left with megatrons that people dont want, making them shelfwarm.
I only ever saw a single Quake in my home town, and that was at a Walgreens of all places.
I wrote an example based on a general trend, what happened in your area may be different. I was looking at it as a whole. When Ollies bought all the TRU overstock, there was lots of Crocs, Quakes and Overlords to go around. All those are rather niche characters (and also happen to be redecos).