@wawrzon
if you are going to sell a truly genuine machine of sentimental value
What makes you sentimental?
the things you can do on it?
How you use it?
Or the smell of old dust inside the computer?
to get a computer that runs the same software under emulation.
AmigaOS4 Software is not running under emulation, if you like new programs and the OS, more then you like old Amiga500 games.
If getting on the Internet is important to you then AmigaOS4 on new PowerPC computer is way better to use then AmigaOS3 whit old browser.
plus can run some Linux ports, then considering all aspects you might be better off with a pc.
No one is forced you to run Linux ports, there are other programs to use as well, that do not come from Linux. The problem whit AmigaOS3 software is that its old.
Take Dpaint or Ppaint, this are arguably the best paint programs for AmigaOS, but they do not support 32bit and does not support a lot features not compared to modern paint programs.
People need software and it has to come from some where, if a AmigaOS3 program that has been updated, or if its a Linux program that has rewritten to run on AmigaOS4, or AmigaOS3 make little difference to the user.
Its a bit like companing that you can run DukeNuke'em 3D or DOOM on Classic Amiga. Originally this where PC games or MSDOS, you don't go telling people to run MSDOS instead of AmigaOS, because the games comes from MSDOS.
Most of the Amiga games where ported to AmigaOS, even in 1980's and 1990's. Many games came from C64, some came from MSDOS, some came from Atari.