Recommendations for a good power conditioner? Do I even need one?

I went with the simpler is better concept and parted with an old PS Audio P300, and replaced it with an almost equally old BPT power conditioner. My choice in effect stayed the same, i.e. I value the betterment that balanced power has to offer. The PS Audio regenerator was good in service, but is quite complex internally, and the BPT did much of the same thing as far as balanced power goes, and only uses a very beefy transformer plus other appropriate parts. 
 Richard Grey products do have their place in my system, yet probably in the source end of the system.