All of those other media that you mention can and will also eventually fail and, in many cases, require specialized equipment for their consumption. Also, don't forget that the so-called "easy reproduction" for non-interactive media was in its time a revolution in its own right, like the invention of a printing press, various photographic processes, audio recording and, eventually, moving pictures, not to mention the historically recentmost industrial achievents in these areas. The question of whether it's that hard to get old software to work on newer systems is a bit moot in the context of you being the final consumer only, I presume. Old software gets routinely ported and re-released to run on newer systems, but it's a work requiring certain skills and knowledge, just like an offset printing press requires some too to get it running.