There should be no limit to the amount you can sell your good/food minerals/ore etc.... If there is no goods, i should be able to post goods at 100 each, wether people buy them or not, is different. Agree disagree?
a mineral amount price per increase would be interesting. but on the other hand, that would make it harder for most players to build their fleets, especially the ones doing the UW attempts. Very much more costly. Sounds good to me, only cause I am an AMiner :p