I can think of a few reasons for not caring after all these decades. . It's both sad and funny to see things you helped design become obsolete, selling for mil

I can think of a few reasons for not caring after all these decades. . It's both sad and funny to see things you helped design become obsolete, selling for mils on the dollar or end up in a recycling heap. . Careers often are all about designing the same thing over and over. Even products that appear different to the user often have similar logical plumbing. . Tech really does change over time and you don't care about the new. (for example) I could give a rip about anything involving the internet but that's where all the money flows.