It occured to me after seeing Andy's response that my replies were just me being opinionated and not even providing a solution...
Andy had some great feedback.
Let me state that I use exitsplash A LOT but the ways we use it is to tell them of an un-announced bonus. That bonus is something that they would have gotten anyways but we specifically leave it off the salespage so that we can use it as a final grab.
OR we introduce spilt pricing. The full price stays the same but 2 payments.
OR, we throw them to a squeeze page. If they didn't buy maybe we can at least get them to opt-in.
OR, finally, we take them to a shorter, more condensed pitch page with new testimonials.
Etc.
I'm not a fan of discounting either. But I wanted to clarify that I AM a fan of capturing exit traffic.