The Amazon store I ran when I worked for a VAR was the best lead generation tool the company I worked for had ever found. I sold a part that if you bought indicated to us that your annual IT spend was minimum 150K a year, and I sold dozens of these parts a week. Most companies have a customer acquisition cost, we got paid to get new customers.

It's super against Amazon's TOS for resellers to contact customers outside of Amazon controlled channels, but I never lost a lot of sleep over it, and dont think people were buying much 3PAR storage off amazon anyway.