I gave my wife one for Christmas about 10 years. I believe I paid around $300 for it. i use it more than she does.
Just in case anyone thought the specs might have changed, they seem to be exactly what they were way back when. Cleaning out my Mom's house, we found a meat grinder attachment that has to be at least 60 years old. No one else wanted it so I brought it home and it fits our KA perfectly.
The only thing I have run into that isn't perfect is grease leaking out of the head. The drive train above the mixer is filled with grease. If you don't use it a couple of times a months, at least, the grease will start to run past the bushings and make a mess the next time you do use it. It can actually drip into the food you are preparing. This can be avoided by using it regularly and if it starts happening it will stop after a few uses. So use it well and often.