For sake of argument, on RSC there was/is 30 inventory spaces. When the switch over to RS2 happened and the inventory slots were reduced to 28, this did not cause prices of raw materials/drops to increase. So I don't think that having 30 spaces, again, would effect anything... at all. Now, if they just so happened to add more than 30 and tack on the BoB slots, then who knows how the 'follow the leader' type of community would react. If people started to say that because of the extra spaces then such items will drop in price, then they will more than likely drop in price. It all depends on how the community would interpret the update.