I’m in no way condoning Nintendo’s behaviour, but the idea that they don’t make any money from their back catlog is rather misleading given that they have re-released a large number of their older titles to either buy or rent on every console since the Wii, along with releasing mini versions of their older consoles with the titles pre-loaded. It’s not like they locked those games away never to be seen again.
I too like going fishing in my underwear.