The old C64 gets fired up around 5 to 8 times a week for a spot of Forbidden Forest, Poster Paster, Super Pipeline and Mr Mephisto mostly...
The old VIC 20 maybe 4 or 5 times a month for a few games of Omega Race & Gorf for the most part...
Even though I can use a C64 emulator running at full speed on the Amiga it lacks something in the sound quality that only the real SID chip can produce...