I have several games worth a lot: Suikoden II, Chrono Trigger, Earthbound, etc... but never worth THAT much. I also have some Ninja turtles from the 1980s still in their original packages, but they are worth barely as much as their original price + inflation.
But, as a note, when it comes to games, the moment digital versions of them come out they lose a lot of value (I think Suikoden II went down by like 50%). Maybe games with less attention that won't get ported/remade would be what to look out for.
I describe myself as a little dose of toxic masculinity.