I am happy if the manufacture provides a power cord at all. I wow at a dvd that comes with those red, white and yellow cables and batteries for the remote!
However, I feel High End products should NOT come with any cables at all. Many manufactures Recommends them. Spectral Audio twists your arm for one speaker cable brand. Power, interconnect and speaker cables should be left to the customer for the fine tweak. An audiophile who has experienced the benefits, already has a few of their choice.
Consider: What if the cord or cable the manufacture recommends (sounding the best) cost of $20,000, includes it with the product and passes the cost onto the customer? This tread would be "Should the manufacture force a power cable onto the customer?"