It's called manipulation. This is how it works. A few people decide to manipulate an item. Buy the cheap ones and relist for much more. If someone undersells then buy it. People then actually fall for it because they are used to it. I mean used to overpricing. When they see something for 10x the price, oh it's inflation, oh it's the event. Nope, it's just overpricing. Did you notice how so many items are rising up lately? We have had many profitable events before but they didn't rise. Now we have this scheme of overpricing going on so prices are rising.

My advice to people would be to not buy overpriced.