Thanks for the response. What we find is that interactive materials have a number of benefits. The most obvious is that it provides a kinesthetic and muscle-memory type of learning which just reading the printed material doesn't provide. Second, it provides an easier entry for folks who are glass-shy (and there are many of them!). Third, it is an attractor for potential students/renters who just have to try the thing they've started learning.
I realize you guys are selling so sell you don't want to devote cycles to developing yet-more materials which have a long maintenance tail; yet, it's not a bad way to market either (for that matter, a set of gauges which emulate your functionality for FSX would be an excellent marketing tool as well - I'll admit to using the G1000 C-172S cockpit for early familiarization before being checked out in the real thing).
If you're interested, I'll share the results of the interactive materials we produce.