Somewhat interesting but really.....all they need to worry about is what their competitors are offering!!!
Price, schedule and hard product are my main criteria. DSC/50% promos aren't common enough to be a major factor. I'll make use of them if it fits into my schedule but don't go out of my way. I'll admit there's the temptation but I've resisted so far! TBH if I went to an AFF event they may just bring down my last wall of will power!