Captive Markets don’t require a lot of marketing skills!
Potential customers who are constrained to purchase a good or service from a particular supplier because of (1) shortages, (2) competitors’ high prices, (3) lack of competition, (4) unique feature or benefit of the item, or (5) the seller owning the buying entity.
Read more: http://www.businessdictionary.com/definition/captive-market.html
The alternative to pro sports is “I don’t care”.