Economics, my friend. The cost for the extention of the period may or may not be the same. Could be the same, higher or lower. It all depends on how the economy devellops. Also the more items are sold, the lower the profit per item can be.

Some examples/factors:

  • if production cost raise, the price will likely also.
  • If they drop, the price is also likely to drop.
  • if the government decide to raise taxes, the price will also likely raise
  • the sells increases a lot, Alwil may decide to lower the profit per item, which will let the price drop.

Didn’t you they teach you basic economics at shool? ;D