its alittle offtopic now^^ for suggestions to MIs we should open a new thread for it!
for me, iam interested in the cost of grim dawn and xpac, maybe i wont get a answer but i really want to know how much the development of grim dawn had cost and of course the xpac 
… why i ask that? because we debated with grava about very expensive games like destiny.
my guesses are around 2-5 mil for both