Best $200 speaker cables for overall performance?

Marc, Your Nak receiver may have amp circuitry borrowed from the Nelson Pass "stasis" design originally for classic Threshold amp. If so, there is a lot of quality ready to be unveiled by your speaker cables.
My own experience switching from Alpha-Core "Big Boy" MI-3 "Divinity" (I'm not making up their terminology!) to Reality is of a better "realism" due to more vocal and instrumental detail, and better three dimensional soundstage placement cues. My transmission line bass (down to 28Hz) has better texture and pitch definition.
Perhaps, the twenty day money back home trial offered by Gregg of Reality will tilt you toward trying it.
Alpha-Core is outstanding, yet the comparison favored Reality in my particular listening situation.

If there is a Goertz home trial offer, and you like them a lot, then you can choose them, and own a great value in cables.
Otherwise, a Reality home trial will surely impress you, as it did me, directly comparing the two companies.
Although it is not possible to audition too many competitors in you stereo setup, it really is not better to add up votes for one or the other here on Audiogon. Only what is heard in your own unique setup is important.

May I second the comments of Jp1208 as I have used with great success Reality IC's and Speaker Cables in five different systems (different systems at different times).
Impressive in all five. You get to really hear what your components can do.
I realize Angelsmtn reports a different view. My own experience has been favorable. There is a quiet background with reproduction that can be described as full of life and overall a tremendous performer.
Each person can listen, and make up his/her own mind.
Another source of information about Reality is the Audiogon dealer, Clearsound, for those who realize it is always in the interest of a dealer to approach audio shows with their best wiring.

Angelsmtn, The effect of ERS cloth
(see musicdirect.com)wrapping to reduce undesirable EMI/RFI may have changed something so that unique lack of synergy with your particular components.
This is usually a desirable product, and I think I recall this is used by Gregg, as well as other designers, during the product optimization process.
Glad you found something that works in your system, although I always find Reality to sound so wonderful in each of my systems.