Seasonal Toy City Stores by Party City
 

The main perk to this for collectors is they will likely carry the popular brands too.

So Marvel, DC, Power Rangers, and Transformers will likely be heavily present alongside Barbie, My littlest petshop, MLP, and Monster High. Plus whatever Disney material is the most popular of the time, and other similar "toyline of the moment" popular stuff. Hopefully in more fresh cases style too of whatever is new at that release time.

That'd be my guess at least. Still not a permanent solution to the problem, but at least it's a good start/alternative that'll help on the more popular mainstays.