I read that about 4 or 5 years ago WalMart made a couple of stategic corporate Decisions. The firest was that Fishing and Boating were "Seasonal". That why you see the shelf space expaning and contracting during the year. The second was to give some "Local" control over the items stocked at an individual store. Each store could tailer there inventory to the local market. This is why some products would be at one store and not another.

It appears that Corporate is adjusting this philosophy some what with the addition of higher end products.

If you want your store to carry particular products you need to talk/write the manager. Since ordering is done ~ 6 months in advance you will see the results in Feb 2013 if you start now.