If the price is right, I'd say jump on it. I was given a D3 about 20 years ago, and in fact, still have it. Bought a B4 in CT to use in the bathroom of my apt. It became my "travel" enlarger, and worked well making prints up to 16x20 in the spare room on Maui. Once back in TX, I built a new darkroom in '04 and installed a D5XL w/Chrometrol. Fantastic piece, improved my prints with infinite adjustment control.
Granted, I do shoot 4x5 as well, and use it for that when I do. BUT, don't ever say you'll never shoot LF. Once you do, you're hooked. Go with the D2, and really see what your prints can become.