The best dealmaker of all time is satan/devil figuratively/literally. He gives you all you want as long as you live. And then?

You serve him service and keep paying him back FOR ETERNITY. Dumb ROI. Dumb deal. Dumb bunnies do it because they have no conception of "future". They want it NOW and the devil with anything else.

Real or imaginary? How does that matter? It doesn't. Stupid people make stupid deals. Period.