ac noise rejection filtering?

I have a Monster HTS MKII 1000 power line filter for sound and cinema viewing, however, now I am kinda confused since "most audiophiles" state that for a better sound is better to have a clean power source, no filter, surge protectors etc just a well built power strip uninterrupted. I know that most audiophiles dont consider Monster to be a top of a line product but these filters cost me almost $200 a piece and I got 2. Also I replace my stock ac receptacle to an Acme cryogenically treated outlet $45 for a outlet ouch!! I just got one for my main A/V needs. Also, I am considering changing most of my cheap outlets to Hubbell hospital grade outlets at $6 a piece better than the commecially available ones that cost less than a dollar.

Anyway, getting into the powerstrip/line filter/noise reduction question, what really works best for sound improvement? Did I go the wrong route my purchasing the Monster line of product for noise ac noise rejection? Or should I just spend my money on a good quality built power strip??? If so, what power strip is a good one for my stereo needs?