I owned two Commodore 64s, a Spectrum and a VIC-20. Both the Commodore boxes and the Spectrum had their merits, and I did like the whole "BASIC commands are characters" thing the Spectrum had going on.
I still have the C64s and the Spectrum, but the C64s are both knackered in a similar way, and the Spectrum has a dodgy power connector which causes it to 'reboot' periodically.
For those who like blowing stuff up, you can find some guys burning more 'modern' components up at LetsBlowItUp.com. I have no affiliation whatsoever with it, but it does have some humour value I suppose.