i used to try to buyout things on WoW and it never worked out because I'd end up spending more gold keeping the prices high than I would selling whatever I could manage to sell, and that was even back before everyone had the market history readily available and could check if something was overpriced at the moment.

Sometimes when there isn't much of an item on the auction house it can be worthwhile buying out what is on there and then putting up my stock at a far higher price, such that if i sell one or two units before the price naturally settles back to its median then I end up ahead, although in practice its still gambling and I don't know how often I make a profit that way.

its pretty common on path of exile for a few rich players to band together to buy out a single item and jack the price up significantly but I also don't really get how that works out. Even if you can inflate the price pretty heavily and buy a lot of stock initially at a low price, you're still going to have to end up competing with newer people selling the item at just beneath the higher price you set, and eventually you won't be able to sustain your prices without putting in a lot more money than you're getting out, and I have trouble imagining that they make what they invested back on the way down, or that they meet any sort of equilibrium at any point.

Pissening development, per r/mtgfinance, a gameshop reported false Legacy tourney results to MTGTop8. Triggered buyouts on Meditate.

It sick it piss it scammening

Yeah, I read about that.