I have a problem throwing my money out there for mystery apps or the chance that I might get something great.
Mystery apps to be unveiled later in the sale annoy me to know end, but I understand the business aspect of it.
What really gets me though is what the OP mentioned: the lack of a counter. If I think I'm dropping $50 for three apps and end up with one, I'll be thoroughly disappointed and would likely be dissuaded from ever participating, as a customer, in a sale like that ever again. Leaving that up to speculation seems shady and low and is a big reason why I'm not buying this bundle (that and I'm not particularly intrigued by the apps. Nothing can please all of the people all of the time and I'm ok with that).
Give a man fire, he'll be warm for a day. Set a man on fire, he'll be warm for the rest of his life.