I really don't see the big deal.... I mean a xbox controller is 50 bucks, at least you are getting two controllers for about the same price.
NOT!
I agree that the price is equivalent, but you are definitely not getting two controllers. Instead you are getting a fully functioning controller for about the same price. 
I wouldn't personally find the price too bad if it weren't for the fact that I never use the damn Wii. I want to play the new Zelda, but hell if I can be bothered to pay for a new controller with Motion+ for a system that is used about once a year.
No, no you are not.
A 360 controller is a standard wireless controller with a usb hub with an outrageous price point... and yet people don't complain about it.
For a wiimote+ you get a bluetooth controller (much more expensive) with an ir camera, dual accelerometers and a gyroscope for a lower price. In other words it's a much better value for what you get.
The nunchuck is not a requirement. I think something like 30% of the wii games actually require it, so you are indeed getting two controllers for the price of one.
Don't project your wii hate onto the price point. Your argument is like saying "Boy that beautiful, disease-free woman that will fully pleasure a man for only a dollar is too expensive, because I have erectile dysfunction and rarely need her services." In other words it may not be worth it to you due to your unique circumstances, but it's still a fair price.