I have read all the reviews & comparisons. I was sold on the Duo Plus (best bang for the buck) until the Ultra went on sale. This is my first IP, so I am not "used to the way the old model worked" and they are now both the exact same price. so if you can have the Ultra for the same price as the DuoPlus, would you go for the Ultra or would you still stick with the DuoPlus??