What's the Deal With Franchise Territories?
One of the factors of looking into a franchise is not just the popularity of the franchise itself, but how they go about assigning territories. Not all franchises can throw a Starbucks up on every corner of a town in NYC and expect to get a ton of business.
You probalby won't have much competition in a small town selling OxyElite Pro to the public, but in a bigger town you might.
Here is an article discussing how to look at this topic. Many, but not all, franchises grant an "exclusive territory" to their franchisees as part of the rights given under the franchise agreement contract.