I'm in a similar situation. I have used Logic for a while now too, and I find It does everything I need easily. I can use pro-tools if I have too, and I think editing wise it is very intuitive. I record foley, edit dialogue, and do sound design with it, as well as music.
Not EVERYONE in the "real world" uses it, but there's definitely a high percentage.
I would agree.
Cost versus quality was an issue for me when I first got Logic. Pro-tools was locked to the proprietary m-boxes, which I didn't like the quality of (I was not in the market for an HD system at that stage). I found at the time that I could get a much better quality AD converter for the same money.
That's a little convoluted, but my point is, now that Pro-tools is again unlocked from the proprietary boxes, it makes it very probable that i'll move over to it.
Just another opinion.