Ignition Controller

While searching the Internet, I found an electronic ignition controller for 2 stroke and 4 stroke small engines at a reasonable price of $4.10 for one. I am not an electronics person, but it looks like a simple circuit design that maybe some one here has some input whether it would be economically feasible as an alternative to the one that come with the 2 stroke kits. It does have 3 ignition advance angles. In volume of 500+, the company would program to buyers specifications. I figure about $2.00 a piece in volume of 500+

Typical power requirements for the KX1130 are 1.1mA at 5 volts.

Here's the company:
http://www.keterex.com/kx1130.php

Here's an application note:
http://www.keterex.com/pubs/an1101.pdf

Chris
AKA: BigBlue