oleschool you are absolutely right about diminishing returns. So many of us buy too much cable for our components. You have a nice system - get to know it better with your new speakers and then decide after time what you feel you are missing or would like different. Because no matter how much you spend on cables most of the time you do not get "better" but "different." At least marginally - you can get better but the the larger degree of change is just different. And component, room, cable matching varies greatly from audiophile to audiophile. You will notice (I have bee guilty myself) a lot of cables guys swear by have been replaced by new cables they swear by.
I have been doing this and buying and selling for a long time - this is my strategy.
I have been doing this and buying and selling for a long time - this is my strategy.