@lfisk For some reason (probably a friend that moved) I have two Onkyo's, but we are using a new Sony.
Caps seem to be the first thing to replace when t-shooting. When I was in the AF I put a 'scope on the power supplies of tower electronics and they were all in need of new caps.

@jerzone Yeah, for sure. They were a likely target when I was still working too. Though some models were especially prone. The early switching power supplies were a huge pain-in-the-butt...

@lfisk Radio station I worked at in the 70's had an automation system with a huge drawer of power supplies below the computer boards. No idea what the DC out of that looked like, but the heat coming off of it was blazing and it just cooked all of the (socketed) chips on the boards above it.
Also the whole system was super sensitive to any kind of static electricity, we'd regularly spray fabric softener on all of the carpet surrounding it. You don't really see that these days, seems like they figured out grounding and shielding or chips are more robust.