Popularity of a product isn't an accurate measurement of effectiveness.
Look at how many people bought phen-fen and Ford Pintos.
Just because something is better, doesn't mean it'll catch on.
I mean, Betamax is technically superior to VHS, and look which one took off; hell, most people don't even remember what a Betamax is anymore.
It happens a lot in the consumer world.
The system works very well.
Let's put it this way: none of my friends heard about Photoreading, either...and now I can read faster than any of them =)
-Ramon http://razor.ramon.com