Thought I'd answer a couple of questions in this thread. I buy and try sharpeners, just to see how they perform. I've been using the WE for about 6 months now, and have found it to be a very capable sharpener.
The WE will have no trouble addressing this issue.
I've done several recurves with the standard stones, and haven't had an issue getting them sharp with just the standard stones. The key to recurves is to pay attention to how the stone hits the bevel as it follows the curve, and the setup of the WE allows you to easily do this. Working a recurve in both directions (going towards the tip and towards the heel) allows you to work the entire curve. The "recurve capable stones" just make it easier, but IMO, aren't really necessary.
The answer to this is... it just depends on what your needs are. If you get the WE, and do little more than touch up your knives, you'll be quickly disappointed. But if you use it as it should be... you'll quickly realize that you'll be able to do things you'd never even consider doing with a Sharpmaker. The end result is just one aspect of sharpening. Sure you can get a razor edge off a Sharpmaker. But, reprofile an edge? Grind out some damage? Sharpen a knife that hasn't ever been sharpened, and you can't tell the edge from the spine?

Alter the angle, level of finish, etc. to better meet the needs of the knife's use? Just a few examples to consider.
cbw