What is the best power cable under $200.00 retail?

:) ...

DIY. Purchase some 3 conductor, 10 gauge pure copper w/ silver plating transmission wire in the length required and then attach a set of Furutech connectors. (plug and IEC)
Purchase the best you can afford within your budget and if performed carefully you will have produced a power cord that rivals the best in the industry.
Off hand, I can't think of any commercially available power cords in your price range that perform well and your audio components can and will sound only as good as the 'sound' of the power cable supplying them.
It has taken me a long while to get my head around this notion but has proven to me anyway, to be true.

I recently purchased DIY Supra 2.5 and the matching USA male plug and hot wired it to a Soundcraftsmen power amp used in one of my systems. Quieter noise floor, greater speed, more dynamics and greater musical flow over all. This amp did not have an IEC connection, which I thought about installing, but went the other route. Very happy with the results.

I have had good luck replacing all my cables with Furutech PCOCC wire. They sell bulk cable that is very similar to that used in their top cables. For power cords, I would use the unshielded 12awg FP-Alpha 3 on my amps, and the 14awg shielded FP-3TS20 on my digital and possibly also on my preamp. Both are made from PCOCC wire and have undergone their propriatory Alpha cryogenic and magnetic treatment. If budget is an issue, you can start with basic Wattgate or Marinco connectors and then upgrade later to Furutech's own gold plated FI-25 series connectors, or to the Oyaide P-079 and C-079 connectors. The cables are well built and nice looking, and they look just fine even without using techflex - very simple to
DIY.