I think usually the benefit from these types of vibration isolation devices is noticeable but relatively minor. I must have had some sort of issue that made the impact bigger than normal. Most owners on this site seem to be very happy with the sound of their systems and don't need to worry about this stuff.

Roon, MS600, Simaudio 780D, Simaudio P-8/W-8 and Revel Studio 2s