4 more inches in height may be ideal for some models, remember also that the length of the object can be printed as the height simply by rotating the object. The depth and width of the UM2 Extended are equal to the UM2. I was very excited about the larger size when I saw it at Dynamism (I am in the process of buying a second UM2) but when I came to the realization that the height was the only thing that was increased I felt less impressed to get it as a second printer. Now to tell you the truth, if it was my first printer that is what I would have gotten, delivery date is in April, I can't wai