I bought mine a few months ago, and I am looking forward to the next few years of using it. The only way I would ever upgrade from the D5100 is if all lenses for it disappeared or if it got smashed. Before this I was using a F65. I have had it for 10 years now and the only reason I dont use it is because of the price of film (and I don't have a darkroom
). So just because production is cut doesn't mean its out of date...new models always come out. But the good thing is it is a camera...a DSLR, not compact. Because of that, it will never be out of date.