Even having a few 'retro' systems up and running, mostly Macs from the early 2000s, I find that what we used to do on them: chatting on Skype or MSN Messenger, listening to shoutcast streams or downloading on Napster, playing Unreal Tournament online etc. are mostly defunct now. What remains are local games, clunky word processors and MP3's on the local network. It turns out to be a largely empty experience unless you really get back into Command and Conquer or Metroid.