Talk:Breeding Calculator/@comment-108.180.173.80-20130626003735/@comment-10522400-20130626045848

The expansion cost of 2-6 maps are only for a limited time (mostly 2 weeks I think).. When this happens your inhibitor costs are raised. When the effect ends your inhibitor costs are back to normal( eg. Big Black Sands usually cost 2 Million coins, during the expansion cost reduction period you get Big Black Sands for 3.8 Million)