Does it seem that a lot of things, especially things in the geekonomy, are cheap or for that matter free?
I've got books on discount by ordering online. I can get epic games for my Smartphone for pennies or dollars. I've got eBooks that are usually cheaper than buying the physical book. I can save money with a simple Netflix subscription that brings me endless streams of DVDs and endless streaming of shows.
The geekonomy is filled with cheap (and Cheap's unltimate manifestation, Free) . . . for all the expensive entry fees of the technology.
Cheap is something people are understandably interested in. We like to save money and spend less. We like to get more for less. Cheap isn't the only thing we're interested in price-wise, but it is certainly a driver for us.