They did not raise the price people. The prices are based on your stats/lands unlocked. The stronger you are the higher the price will be.
Yes price is dependent on your build, but on top of that they do raise the price sometimes. This time max price is up 10% to 660 mil.
@draxton They raise the price every sale, I know price is based on stats, so is your daily limit. Over a few sales my stats never changed but the price still goes up.
Does anyone know the actually % they use to charge for mith, I noticed the price and amount you can get goes up as you upgrade