They target people that want quiet/silent cases, obviously not commerical, unless you're going after the long life/warranty service. Or you go for their industrial line.

They are targeting people who want nearly-silent fans for computing devices and will pay considerably higher than average prices for them. I have several of them, and they are vastly quieter than the competition. Wouldn't be worth it in a commercial space, but I want my house to be quiet.

Audiophile products are a known scam.

This is an enthusiast product, as evidenced by the premise that you care about color-coordinating the inside of your computer.