Power Conditioners


I'm looking at the Audioquest Powerquest3 and the Austere 7 Series Power. At this price point are the power conditioner sections a gimmick or can they have a meaningful impact. Is there a certain price, brand or tech which is generally the gold standard? Is power conditioning something you should only need to address if it's an actual problem (you can hear it) across your system or is it a best practice no matter and if so who is the "value" player in the space? I cringe at the thought of spending 4k on a power conditioner. Thanks for your comments. 
spotconlon
@turnbowm,
The changes in dynamics and bass were all for the better, by a noticeable margin. Nothing restricted or limited. In fact, just the opposite in that they both benefited from elimination of noise on the line. 

All of this is with my integrated plugged into the Niagara 1200 instead of going directly into the wall, which is how I used to have it set up.

All the best,
Nonoise
@spotconlon,
I have been using the Inakustik AC-3500 for the past year and have been pretty happy with what it did in my system. Absolutely no loss of dynamics or musicality. If anything it improves the sound across broad spectrum with tight bass and "openness/clarity" with wide soundstage. 
Does anyone have one of these Monster Entech power line sniffer devices I could borrow/rent?