For me, I don't foresee that my picture taking is going to get any better or worse if I get a DSLR. The only advantage I get is the convenience of being able to preview the picture. Which don't mean very much for me.
Also, I like to view slides on my projector. It's a really nice experience. You can't do that with digital pictures, unless you have a LCD projector which is like whoa.... worth another DSLR.