Allen it may look complicated but it really isn't. and for something like dovetails, once you do it, you'll see that it is quite intuitive.
I don't cut dovetails every day so for me, a dedicated dovetail machine doesn't make sense. I like having a machine that is capable of more than just one thing.
I've gone on about this before so I'll try to keep it short. My opinion is that with the adhesives we have today, dovetail joints aren't needed so much for their strength as they once were. No matter how you make a dovetail joint, they are fussy to make compared to a joint like a lock rabbet or using biscuits or Dominoes or even a common box joint. If you only want to put two boards together at a corner, why not use an easier and quicker to make joint and strong adhesive? Well, the reason for using a dovetail joint is aesthetics. If done well, they can have a very pleasing look. Personally, I don't find dovetail joints made with fat carbide cutters pleasant to look at. I especially dislike the zipper-tooth look of dovetails made with those dovetail jigs with the comb templates. While dovetails made with the Router Boss are still machine made, they can be cut to look nice. As I mentioned before, if you wanted to, you could cut the sockets by hand and create needle-like pins on the Router Boss. All you're doing in that case is using a spinning cutter instead of a chisel and saw to remove the waste. You could actually layout the dovetails as you would if you were cutting them entirely by hand.