I'm interested in a Z3200, 44" model. My likely purchase window is before September. I've been doing some research and see that the Z3100 came out in 2006 and was updated by the Z3200 in 2008. Does the competitive environment suggest another update this fall? If so I might be able to push out my purchase until then if it's likely. I'd hate to get the Z3200 only to find it immediately superceded.