Great thread, very entertaining and informative on a number of levels.
In my green days, I used to think that 1:100 meant for every 1 variant there were 100 regulars, because I never gave it too much thought. It's an easy but false assumption to make, if you don't bother to think beyond superficial logic.
Obviously, it doesn't mean that. If a shop orders 150 regular copies, they'll get only one 1:100 incentive variant. Etc.
One other variable that I would throw in, is the tendency for things not to go to plan. My shop ordered 50 ASM 667 regulars. Along with them came the 1:100 variant which I purchased with the regular copies for £9.99. I later sold it for £500 and thought it was Christmas. Now, I see that that I could've bought a new car if I'd kept it. Am I bitter? Not really. Life's too short. But I do wonder how my scenario happened, as my shop in theory shouldn't have got it.
I tried to ask this in the other thread, and got mauled by lions.