Footers under my speakers double the perceived value of my speakers!

Another available retailer is Crutchfield, which has 35 of 37 reviews of 4 or 5 stars; so, the satisfaction rate is still running at 93%. So, the reporting results are quite consistent.

Douglas,
I have carefully read all of the above, and I have to conclude that you are much less informed than I had previously thought. The OP is correct from my experience with speakers and DACs. Good isolation/draining devices can make sonic improvements that are far from "trivial".  
I will freely admit that my system would benefit from room treatment which I have not done because I don't want to take down pictures, as well as the expense and experimentation needed; but I will not deny the benefit of doing so as many members have experienced and reported here. 
I don't respect you for the blind spot you have shown here, and I also think your tone is a bit pompous.

Anyone try the Pyle isolation platforms?  Their large pad will handle a 110 lb. load.

I’ve been advocating seismic isolation for speakers for some time, so I’m glad to hear of positive results from others. In my opinion some of the options mentioned above can be bettered. I’m not an advocate for either spikes or elastomer isolation. Springs and/or cup and rollers would give better results imo. All credit to Max Townshend and Sven Boenicke for advocating seismic isolation of speakers. I have experience of both and they make a great improvement to the sonic quality of the system. Actually I demonstrate with and without to customers.

There are effective ways of making your own set up which would be better than some of the more expensive proprietary products on the market. It would be worth taking a look at Ingress Engineering and using their solution with a platform of maple or slate. Geoff Kaits springs could also be used in an effective set up. For a ready made solution the Max Townshend Podiums are the way to go.