Even though I'm gainfully employed I'm not going to go out of my way to buy a $300 (last time I looked) tool to learn how to program ActionScript if it's not part of my daily job already. I'd like to learn it mostly for curiosity but then if it works out well maybe I'd push for it at work which is where Adobe would then make real money.
I suppose I could just lie on the form also but would rather just see them do a personal developer license promotion.
The term for this is price discrimination. Once you start looking for it, it's hard to stop: especially in luxury products like wine, jets, and investment banking (millions of dollars for "Why, yes, that is a sensible acquisition!" is clearly a luxury product), the entire game is to find people willing to pay ten times as much for the same goods, and figuring out how to make them pay it.
How is this different? :)
Maybe this is different for me because I think of flash and flex as fun and not a job-related technology.