I agree, the thing is retro gaming has grown so much more popular due to the ideal demographic getting older and having plenty of disposable income, the Internet making information on game sales so much more available, as well as gaming collector’s showing off their collections and talking about retro games and new ways to pay them via videos and Instagram.
There are a few games that I would like to have that are now out of my price range, but I just accept that the ship has sailed on those for me and maybe if the bubble bursts I can get them. I would love for games to be cheap again when people thought I was nuts buying old games. However, I mostly only collect what looks of interest for me so I don’t worry about missing out on completing my set.