Interesting article http://www.marketingprofs.com/charts/2011/4785/americans-flocking-to-coupon-websites?adref=nl040611. We get a tonne of calls on weather to use coupons. Great numbers in the article to support both sides of the arguement.
We always ask our clients that inquire about the type of strategy. Well it depends on what your objective is, and does your ‘core’ customer use coupons?