I keep seeing them crop up here or Amibay and at Car Boot sales, very tempted every time especially when I see them being sold with Lylatwars, Golden Eye, Waverace, Mario Kart. Its very tempting indeed.
But then even on my el-lamo media centre (AMD 64 3700+/GF 7800GT) emulation is pretty much perfect and thats on my big screen TV so I pass each time.
The only game that still sucks under emulation for me is Golden Eye, so maybe its worth it one day for me to play that again I have such fond memories of 4 player DM
Oh and the 4 player DM on Duke 64 (Sorry I was too poor for a PC so played it on N64)