Yea not too much of a difference, but the Z3 is only about $200 more than the Z2. $200 is comparable to the price of the Software Update CD's they sell. And theres no telling what kind of fixes they made on the newer models. I have read about multiple issues with the older models freezing etc. I have had my Z3 for a month and so far so good! For an extra $200 I think it's worth getting the newer Z3 model.