Power Cables diminishing returns


I'm thinking of upgrading my PCs, but am wondering what the sweat spot is as far as price. The price point after which, you see diminishing returns. for example a $1000 is certainly not twice as good as a $500 cable.
linaeum66
OP-

any/all cabling (power cords included) should reflect 10-20% of your system's cost.
Zd542, me either-I've swapped tuners and had the whole system change when playing CD.
I think the variables involved in both ears and gears are infinite, to me the fun of audio is "whats next".

I can get carried away by Bach on a boombox.
It's possible a $1000 power cord could be 3x better then a $500 pc. It all depends on your system's synergy. On your system page you have several different pc's, have you rotated the cords on your electronics/conditioner? This could end up being a free upgrade.
All my power cables are Audience E's. As far as I'm concerned, they're hard to beat for the price.