When you say 'except' I assume you mean 'accept' as in the markets accept your product?
If that's the case, then you start talking about quantities, shelf space, displays, potential customers etc.
You want to speak to the district/store managers of those locations and get specific numbers on similar products to see if there is a great demand.
The higher demand per store, the more of your product you want in that store. Less demand, less supply. You might want to run a promotion on your products the first month or two of being in the store (buy 1 get 1 half off, $2 mail-in rebate, etc) to start sales on the right track.