how much should you spend on cable?


how much does one spend on ic/speaker cable?(%of the entire system)?
let say hypothothetically if you system ( cd, preamp , amp, speaker ) cost 30000? what is a reasonable amount to spend on the ic/speaker cable? 10% 20% 30% or more?
how does my fellow audiophiles balance the equation in their system?
thanks
a1126lin
It's worth to experiment cabling to your system, true ,expensive cables don't give you guarantee they will match your system. My friend told me to loan different cables,so you learn what cables match your system or your taste.This the only way ,  you will find out what price you are willing to pay, for the performance on each cables...
1) Russel is a quack. It’s easy to hear differences in cables.

2) It’s time for Audiogon to make it impossible to add posts to threads that have been dormant for over 5 years. This 15 year old thread should have stayed dormant.
1 also under controlled conditions?
2 why? Does it trouble you that people are telling an uncomfortable truth?