This topic has been discussed so many times and staff who have power over such decisions only mock those who have actual problem with how market is being handled.

One more issue is that is not mentioned here is old exclusive items being prizes in newer events. For example, Slingshot was an exclusive 3 of a kind item for at least a year, and now there are 35 of them. Shit like this kills the price instantly, not to mention how one might feel after learning that an item, which they once fought hard to get in some event, is now available for less than 40k on market.

The idea of "every item should be accessible to everyone" is going to kill this economy eventually, so I'd suggest just getting rid of any "limited" items that you own asap. Marketing rare items has become a game of hot potato where you have to pass it along as fast as possible to not get fucked over by price changes and "sales".