Are contact treatments worth the money?


I have been reading some of the claims regarding the benefits of applying contact paste, liquids, etc. to all my connections. It sounds appealing but would like to know your experience with such products. Prices range from $35 to hundreds.
128x128blueskiespbd
Plugging and unplugging a few times every once in a while will work as well as any contact cleaner. A touch of Caig Pro Gold also works well. Spending hundreds of dollars gives no added value IMO.
I consider the Walker Audio Extreme-SST contact enhancer an integral and necessary part of my system. I use it on all contacts and had my electrician use it on all the electrical connections for the dedicated AC lines coming into the listening room. I continue to have the same reaction to the Extreme-SST as I shared in my post several years ago:

http://forum.audiogon.com/cgi-bin/fr.pl?ymisc&1101694286

Highly recommended when used as directed -- sparingly!
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