Some people are satisfied with the games/apps on the Amiga and don't need the bloated and more complex OSes and aren't lusting after the latest 3Ghz+ processor. And some people prefer the games/apps on the Amiga over those on other platforms either because they are used to them or they are more efficiently coded or unique. I know some Atari 8-bit games are very efficiently codes in 8K cartridges and I have yet to see better or equivalent versions on modern PCs. As long as there is some uniqueness to your classic machine, you can give rational arguments for their use. They are easier to analyze from the real-time analysis point of view (for one thing). Some species of life while being inferior to human beings have features that humans do not have so that does not make those species obsolete.