Sharp, fast, cheap. The D version may be worth purchasing if you use a body that can use the feature, and if you do a lot of TTL flash photography, but the non-D is optically identical and some believe it's better made. (I've only used the non-D so I can't comment on that.)
I own the 1.4, primarily because the camera geek in me always wanted to have an f/1.4 lens, but other than being 2/3 stop faster, I can't say I gained much. (Then again I got it inexpensively so it doesn't matter. )
If money is a concern, the f/1.8 is only a very minor sacrifice compared to the f/1.4, and the price certainly makes up for it.
Jim MacKenzie - Regina, Saskatchewan, Canada
A bunch of Nikons; Feds, Zorkis and a Kiev; Pentax 67-II (inherited from my deceased father-in-law); Bronica SQ-A; and a nice Shen Hao 4x5 field camera with 3 decent lenses that needs to be taken outside more. Oh, and as of mid-2012, one of those bodies we don't talk about here.
It's a nice lens. I have bought two of them brand new. The other one is made is Japan (non-D version) and the other one is chinese (D-version). Funny that the one I bought in 1993 cost more than the chinese version I bought in September 2007.
I love this Nikkor. It's light and small enough to carry always in your bag. At F8 it is as good as you can ever hope it to be.
Avoid the largest aperture and you will be always happy with this Nikkor.