@ethiessen1
Depending on how well the system, at the audio shop, was set up in the first place, I would say you would hear a difference between, without and with the Stillpoints. Most likely, with the Stillpoints, the stage would seem slightly larger, with a bit more clarity and definition through the upper and mid range and possibly a tighter bass. A smooth sales person - with a customer having deep pockets and a willingness to spend any amount to get the slightest bit better sound - may well swing a quick $2K - $5K sale on a box of fancy goods (not counting anything for speakers).
The thing is - for a small fraction of that cost (probably less than $100.00 per component) you could accomplish the same difference, using iso mats, brass tip-toes, a roll of rubber no-skid drawer liner and a thin sheet of dense felt. For a few hundred dollars more, you can add in a couple of 3" or 4" maple butcher blocks. When used in conjunction with iso pads and tip-toes, they do help - especially with TTs, CDPs, transports and DACs.
Also, I've found that small bags filled with sand or shot, can work well for dampening.
Wither in the audio shop, or in your home, taking steps to eliminate vibration and resonance, almost always has a sonic pay off...Jim