Typically, paddle holsters don't conceal very well and are not nearly as stable and secure as other belt holsters. Additionally, the extra technology needed to produce the paddle attachment causes quality paddle holsters to cost more than their non-paddle siblings. High Noon's offerings are a good example of this.
Kramer Gun Leather makes one of the most well respected paddle holsters, though I'm not that familiar with his line-up to know if they list the Cougar. Kramer's prices also reflect the extra cost of paddle technology.