Vibration

"06-08-13: Zenblaster
What vibration or mechanical energy are you trying to isolate with a amp stand? Are they just for tube amps to reduce harmonics?
They do look cool sometimes."

You are trying to isolate vibration and/or mechanical energy.

Unless you live near a railroad track? Isolation in audio is way overdone.

Unless you are living near railroad tracks? Isolation in audio is way overused.

Mass-on-spring vibration isolation systems. There's really no substitute.

Most of those "stands" are more or less a piece of furniture with nearly no effect at the end of day. Here is a done right solution: Vibraplane