One of the reasons I asked this question is because recently I participated in a webinar by marketingexperiments.com . The folks at MEC said they tested three

One of the reasons I asked this question is because recently I participated in a webinar by marketingexperiments.com . The folks at MEC said they tested three different price points for a product - $10, $12, $15 (something like that) and asked the audience, many of whom were marketing professionals, which price they thought performed the best. The majority of them were wrong. The moral, in that case, was that a marketer's instinct is a fine thing, but doing online testing gives you real knowledge of the situation. By doing testing not only can you learn if your instinct is right, but you can glean information about your users/visitors as well.