Winners Choice is great string. I have been useing them for last three years and I would never look back to Zebra.
Another string the almost the same quality but less expensive is Bowman.
His web page is: www.bowmancustomstrings.com
George is from Canada and makes great strings for less than WC.
About prices? How many times you have to tune your bow with Zebra string?
How many times you will tune your bow with custom string? Compare it and count the time you save with customes string.
Vodek