Funny you should ask...I just bought a new one today. My old one fried so I had to get one.
I guess I think the eggs are MUCH easier to set in the new model. They are those cup things instead of the prongs. And, it is dishwasher safe so it will be very easy to clean.
The thing I don't like is my 10200 has the cord hole in the middle so I had to run the cord inside to the middle (new one motor has on the side) and then out. It also only holds 41 eggs instead of 47. And, I had to tape my thermometer to one of the egg rows so it didn't fall down.