Can AC Outlets really make a difference?


I have high quality reference power cords and line conditioner. Will a high end ac outlet really makes a difference? Any recommendations? Thank you.
erastof
What do you care if we waste our money? Difference may be that we have actually tried different outlets while others on this forum have not. 
You can educate ignorance (IF it isn’t willful) and you can medicate crazy, but; you can’t fix stupid.     Any pearls offered will be stomped into the slop of the Naysayers’ sty.     Save your keystrokes!
You are probably correct. I dont know why people cant understand that any improvement you can make at any point in the power chain would pay dividends. Further, others dont like to admit that the better the system the more audible some tweaks become.