The funny thing is even among those cards getting bids, half the auctions are fake scams (at least on the US ebay). The description says it's just a photo of the card or some nonsense like that, but people are still bidding.
Most of the fake ones are just there to act as bot bait. I've seen scams like that in the past, but it seems like a lot of them (if you actually click on it and read it) contain text about not bidding on it if you're a human. Those tend to have prices below or closer to MSRP, but it's probably not people doing the actual bidding for the most part.
All that about mSrp is fine, known and understandable. I want to know who is responsible. Is Nvidia or AMD selling at higher prices? Are the AIBs? Or is that nefarious middle man? And if the regulatory authorities can do something about it, why not? The EU is all about improving everything for the sake of the citizens. It's only natural for us to be responsible citizens.
None of those would be illegal so it doesn't really matter who is responsible. If AMD or Nvidia have increased their prices then it's by definition a new MSRP. The AIBs can sell their cards for whatever they want since it's their product and they get to set the MSRP for them. AIB models typically are more expensive regardless of any shortages or not because they're better cards with better materials and components. Stores can sell for whatever they want since a company can only suggest what it retail for and has no control over the store's pricing. Private individuals can sell their private property for whatever price they want.
Why don't you stop and think about this from another perspective to see why what you think will somehow improve things for the citizens actually won't. Suppose you wanted to sell something that you own, a house, a car, a television, or anything for that matter. You've found someone who's willing to buy it from you for a price you've both agreed upon, but someone comes swooping in demanding that you sell it for a much lower price for the supposed good of responsible citizens. I suspect you'd be rightly irked and suddenly demanding this busy body keep their body busy elsewhere.
Trying to set price controls doesn't work. It doesn't matter what kind of economic model you use, it's a bad idea. If anyone is calling you a soviet it's because they tried (and failed) to use them. They don't work in market economies either and before you decide you're doing good, make sure you're not doing any harm. Far too many good intentions lead to bad ends. Venezuela is currently trying to use these to the exact opposite effect as intended. Sadly they're not doing it with GPUs, but with food, and their country is starving. Perhaps someone thought that a regulatory agency could be used to improve the lives of their citizens and didn't stop to ask if those good intentions would actually accomplish anything?
If people here think you're foolish, you may want to stop and ask yourself if it's because what you are proposing really is foolish, rather than it just being a bunch of a capitalist pigs poking at you.