As an individual who has trialled a range of materials as a Support and assembled these materials into various configurations of a Structure to support equipment, I can only encourage others to try out their own investigations.
I have not and do not intend on trying out a Isolation Platform from a Brand that comes with multiple $K's to be parted with for the experience to be had.
My journey has already got me to a place that I am very content with, at present I am not in the ball park of multi $K's spent and with the upcoming inclusion of a Board to be used as a Sub Plinth produced from a Resin Impregnated Densified Wood, even though carrying a increased cost than usually met, I have witnessed enough from the use of this material to be able to see this as my journey's end.