You can spend a lot of money on Pantone color printing guides.
I really recommend buying old used ones on ebay. You don’t need the latest and greatest. Nor do you need all of their products to be a designer.
As far as the “aging” goes, unless it has been left laying in the sun for years open (very rare), the colors will be fine.
Coke and Pepsi have shelf-life expiration dates on them, too. But they are not required by law for their products because they have an infinite shelf-life. They only put the dates on to encourage turnover. And it works great for them.
That’s the same for Pantone. Old fans and swatch books are fine.
Do not worry about that “replace by” date. It’s a ploy.