Audioquest Niagara 5000 or 7000

As I have no firsthand experience with either the PS audio, or the AQ products, I can’t comment. However, I’ve experienced the Wells Looking Glass. In the system I heard it in, it made a sizeable difference (to my ears). Now, it’s a passive line conditioner, not an active, or power regenerator. It’s also around 2k. I know the PS and the AQ are considerably more, due to the fact they are a different product. I’m considering the Wells. 

jafant, I have a Primaluna Dialogue Premium HP integrated amp, Harbeth 40.1 speakers, SME 20/2 TT, Kiseki Purple Heart cartridge, Parasound JC3+ phone preamp.  Speaker cables are Clear Day Cables Double Shotgun.  RCA ICs are Clear Day Cables.  Power cables are a mix of Shunyata, Nordost and Furutech, but all of them are entry level.  I just ordered a Audioquest Thunder cord to run from the Niagara 7000 to the wall.  If I like it I will buy a second one to run from the 7000 to the amp.  
The 7000 is getting better and better with every session.  It is simply addictive.  

Any of you tried a/many High Fidelity Cable MC.0.5 wall plug/s?

I ask because you possibly could get 85% or better (there) with 15% of the investment?