I've been checking around on multiple sites about how much Windows 11 is. I need to activate multiple computers and I don't want to have to buy them directly from Microsoft because that's a rip off. From what I've read there is a difference between OEM keys and Retail keys. Multiple sources are saying to avoid OEM keys as they often get deactivated. They aren't intended for distribution and are generated by the manufactures of computers that come with Windows already installed. Retail keys however, are sourced from Microsoft as legitimate retail copies of the software intended for consumers to install onto their personal computers. I've seen a lot of people saying to avoid "Grey Market" keys but the arguments are always based on some moral qualms which I don't really have any moral qualms against not sending even more money to huge corporations by buying directly from them. I don't want to pirate either as last time I ran some code in command prompt to pirate Windows and it ruined my whole PC. I also run a business and don't want to be done for piracy. Retail keys are what I'm looking for.

These are the prices I've seen for Windows 11 keys

As you can see, OEM prices are pretty cheap but they come with the risk that you'll have to buy more because they're prone to deactivation issues. Do these prices seem accurate or is there anywhere I can beat those prices for retail keys?