a while ago ad sponsors were still up and a lot of people were getting lots of free ads. So there was a lot of ads in the market with many people trying to sell, so prices were pushed down.
now, there is events, with christmas boxes for ad credits, and a 10% discount in the ad store, so people WANT a lot of ads. But ad sponsors are down, withdraw/deposit is down, and I think for a bit donations were down too. So there were very little ads and lots of people wanting to buy them, and so prices were driven up.
