By "number of people complaining" I meant the other tenants in jrlouie's building - not all of whom (presumably) are hooking multichannel amps up - and that the reason for all the complaints was a valid issue with the electrical service to the building.

As for affording newer homes with newer wiring, that can depend some on the region. Around here, some of the most expensive homes (relative to lot size and square footage) are in older parts of town, where wiring is 50+ years old and upgrades to bring it up to modern standards can be a real bear - if the owner realizes why such upgrades might be beneficial.