"Physical copies" is a big ask, considering they would also have to be selling the hardware to run those games.

To your credit, they aren't actually selling most of their back catalog anymore, since their e-shops that sold games for the WiiU/3DS are closed down, and with them, the Virtual Console died. Now we've only got a subscription-based library to play a much more limited selection of old games.

Either way, it's not Nintendo's fault you pirate games. You want to play old games, and you don't want to pay too much money for them, so you pirate them. Let's be real.