It may sound like heresy, but trusting your ears, in cases such as this is actually a really bad bet. I am trying to avoid getting into a huge chat and derail the thread more, but briefly sighted listening tests are worse than useless and do not constitute anything akin to evidence. Additionally, it isn't surprising to find engineers and innovators who greatly overstate, or leave out a great deal of context about a technology or product implementation in order to make money. You don't have to lie for example, but underemphasizing or overemphasizing certain characteristics, and extrapolating/exaggerating possible effects is a very powerful marketing tool.
What works best about creating an expectation is that the customer base does all the work. You get them excited and let their imaginations run. Suddenly you have created a pseudo reality that is difficult to unseat because people have so deeply invested themselves emotionally in something that really isn't at all emotionally relevant.
