If you are handy and feel comfortable with AC power you can try making your own. I have my components on a SoildSteel rack and most standard lengths leave big loops that can cause issues since the back of the rack is exposed and I walk behind it. Having just the right length was the solution for me so I got wire and connectors from Parts Connexion and made my own. For my cables I used the DH Labs Power Plus wire ($11/ft) and Wattgate connectors. Better than stock cables, but not as good as high end power cables (> $500/M). It is a trade-off and I’m Ok with that. In my opinion having a shorter cable should be less damaging than an equivalent longer cable dangling behind the component and possibly getting too close to another cable. Of course, there will be lots of opinions on this so go with what works best for you.
I should add that I have a 0.5M PS Audio AC-12 and it is not in use because it is way to stiff to mate with most components, I’m sure many of the high end cables fall in this category as pointed out by others. I also have some Pangea 14 Ga. cables and they are very easy to place and work fine for low power components. Good luck!