What outlet should I choose.....

Decided to try and install dedicated electrical lines to my system, so I've been researching wall outlets. There are PS Audio, Porter Ports, the new Japanese outlets, Wattgate, etc. And of course with everything else, prices run the gamut. I understand the need for better outlets, but come on...$147 for an outlet? Are the higher priced outlets that much better than the ones for $36?

I ask because I don't want really want to take the time to get the different outlets and audition them. With CD players I can do that, but it just seems silly to audition wall outlets...help?