RE: RE: A vs. B Conversion Dates It's not at all like your shoe analogy. But you`ve used this analogy before so I`ll use it as well. If you're buying and telling others to buy the $40 shoes, it's not affecting the people that already bought the $100 shoes, they already own the shoes. Whereas your goal here is to pump the A's and B's and bash/short the commons. So essentially what you`re doing is telling people to buy the $40 shoes instead but at the same time you`re also bringing the retail value of the shoes down. So they`re no longer worth $100, thus making all the shoe stores reduce their price - so you end up not saving as much as your number crunching says you are.