Speaker cables are speaker cables are speaker cables. I don't agree with
@Mark E. Long at all... THIS IS NOT SUBJECTIVE!!! This has been stated time and time and time again on Audioholics. Measurements of components is not subjective. It is measured. We get actual results. There is tons of data supporting the results. Everything beyond that is so much nonsense that it gets ridiculous.
Now, if you just want to upgrade to go from something ugly, to something pretty, that's your money to spend. But, if you have a capable solution currently, then you aren't going to get an improvement, you will just be moving sideways and any improvements will be almost entirely psychological.
You can buy cables which also measure 'very good' which cost a good deal less. So, hundreds more, or less, who cares as long as they perform as they are supposed to for the system that they are being used in?