Surge protectors and power conditioners - Good idea or bad?

I live in an older, poorly grounded home in old suburb with an overloaded grid. I have most of my equipment hooked to power conditioners, except my amp. I based this decision on advice from electronic "experts" that certainly know more than I do. I don't hear any difference from when the equipment wasn't hooked to power conditioners.

That being said, my televisions do have less artifacts in low light scenes, now that they are hooked up to power conditioners. I also saw some general improvement in the overall picture quality. 

I have a Furman 20 elite and serves me well (20a line), I dont see how people can say to avoid them , if your a  video guy do allot of HT , Ive noticed without a doubt positive effects of having SP , I had some work being done at the house and they were running skill saws outside , my overhead lights would dim yes but not one glitch ,snow, fuzz, Jitter,  I know for a fact it works . It also has a Capacitor bank (Power Factor Technology provides a "current reservoir" for amplifiers, receivers, and subwoofers (over 55 amps peak charge) Im saying it works, call me a noob , I would never not use SP for my gear , wouldn't think of it , I have to much money into my system , I worked as telecom worker in peoples houses and seen first hand what strikes can do, Ive seen holes blown up in peoples yards ( accent lights ) along with sections of house wiring shot, I have relativly good power in my neighborhood but we still lose power on occasion and when that happens you get a surge , Maintinence cuts in the middle of the night ( Surge) doesn't kill your gear but it was in fact a surge none the less. Ill take the .0001 distortion it adds to audio all day long. 

I just had a while house surge protector installed at the main panel after the deep freeze in Texas. I did not notice any degradation in SQ what so ever. I sleep better believing that my Vitus 101 Mk II integrated amplifier and Lumin streamer/ DAC are protected from a power issue.

I have installed a whole house surge protector - for $300 its a relatively cheap investment to protect all your electronics including items you may just plug into the outlet.

I realize I keep harping on this but a balanced power unit will give you clean 120v power with no noise. As long as it provides sufficient instantaneous amp draw, there should be no problem using it for a power amp. For example, the Furman IT Ref 20I has 4 outlets that provide up to 80 amps peak power. Will your amplifier draw more than 80amps? Here is a statement from Equi-Tech on the model Q.

It drives amplifiers and other high current pulse type loads without skipping a beat. Power factor remains virtually stable regardless of the type of demand load.