The right price as a % of retail will vary, especially with wires.
Best to set a budget and go with that.
Wires are excellent candidates to buy used in order to get the right price.
I bought a very high quality $300 retail Pangea power cord new for $90 from Audio Adviser via Amazon recently. So you can see that manufacturer retail prices are often not a good indicator of actual value, especially with hard to nail down products like expensive wires.
Best to set a budget and go with that.
Wires are excellent candidates to buy used in order to get the right price.
I bought a very high quality $300 retail Pangea power cord new for $90 from Audio Adviser via Amazon recently. So you can see that manufacturer retail prices are often not a good indicator of actual value, especially with hard to nail down products like expensive wires.