How much should a person spend to get a decent power conditioner?

Usef isolation transformer = $150 - $500.

A good used power conditioner $250-$700.

All day long unless you are afraid to pull the trigger.

Hey y'all.  I've come across a very nice Tice Signature Power Block IIIb which I could not refuse.  Now, after searching the internet for days, I've found no owner's manual that is available online.  Does anyone out there have an owners manual you would be willing to scan and send?  It's a long shot, but we have not because we ask not.  I know it's pretty simple, you plug stuff into it, and it works, but there has got to be more to it than that.  I understand the high current for the amps and proc?  But how about the sub?  Should it remain on or be turned off if not in use?  What opinions are out there for using it as the 'trigger' for the Parasounds?  TIA y'all.

Amount of money that consist the financial blog it always depends on the quality power with just enough price.