Thank goodness for digital cameras because I'm saving a fortune on film development. I'm one of those who takes a ton of pictures and now I take even more with digital. It's true I take pictures of buildings and rocks but I try and make all of them interesting. I also take pictures of people because I love candid shots. The difference for me, though, is that I bring those 1,000 pictures home, pull out the top 50 or so and show those to people. As sensitive as that makes me sound, it's more because I want to upload those photos to my server and I only have so much bandwidth/data transfer allotment and disk space. So my thiftyness ends up saving friends and family from suffering through 1,000 pictures from every vacation.
But heck, take all the pics you want with digital cameras. I'd much rather have too many than too few. I can always hit delete but I can't retake in most cases.