it seems that just like with any other market, scarcity dictates the price. however, aiming at being the ultimate specialist of a little known piece of technology is a very risky bet.
On the other hand, you don't have to make $500k+ for too many years before employment just isn't a big concern any more. Rumor is that's what you can make as an expert in image processing.
Indeed, but it does probably takes a bit of time before you're proficient enough to be worth that amount. Plus, the time you spend working with this tech, is also a time during which you're most likely not learning something new.
