Shouldn't the amount you sell lessen..
Yes. So the higher the price, the greater the scarcity on the market (from the big players), so it constricts the market more. But, it depends on who is holding :)
I will however consider myself rich when I can buy something without needing to worry about the bank balance, you know just swipe it...
Yep. And, I don't see a lot of need creep for me, so as long as I keep adding some incoming value, I should find an equilibrium someday. :)