Forget my last post about adding rare items to my collection.
If I won the lottery, I'd open a retro shop and run it the way I've always wanted to see a retro-shop. And I could actually do it, because I'd already be rich and so it'd be a labor of love, not for money. Sell items at prices people can afford. Stock those systems and games that other mainstream shops tell you "aren't popular enough to buy".
I'd also make it fun by throwing in a few arcade games and pinball machines. As well as having gaming tournaments and high score boards.
But I'd also have used CDs and records, used DVDs and VHS, comic books, and other cool retro stuff in addition to the games. Make it the ultimate one-stop-shop for collectors. My area SORELY needs something like this.