Because it was so much nicer than my D70s. Played with a D90 at the store a week or two ago and one thing (well 2 actually) made me a sad panda when I went back to my car and looked through my D70s. 1. Viewfinder. Holy Moly is that a huge difference. The D90 was like the difference of my 52" big screen in the living room versus the 19" in the bedroom. Not actually that big but it felt like it. Also it seemed much brighter. I never would have even thought this would be a factor, but honestly close to if not THE biggest convenience for me. 2. LCD Screen is as big or bigger difference than the Viewfinder. I'd actually be able to see if I missed focus or properly exposed on the D90's screen versus mine that I try to get it "close" cause it's hard to see really well on the smaller screen. Also RGB histogram would be nice. 3. Then of course there's the huge list of other features I would use like high iso ability (my D70s is horrible....even ISO 800 is really grainy). Then the more af points for large apertures/small dof. Ability to get a grip (huge for me since I shoot portriat orientation a lot. etc..... So, going back to my D70s was like test driving a new porsche cayman S and driving home in my honda civic. It probably didn't help that I had the Tamron 17-50 f2.8 on the D90 when playing with it. Luckily I'll be getting the Tamron 17-50 f2.8 in about a week or two and hopefully a D90 when I get tax money in a few weeks (hopefully with MB-D80 Grip). Anyway, I rarely hear reviews showing what I found to be the biggest differences in the D90 versus some of the older stuff like the D70(s) so thought I would share.