I rode my bike across the country two summers ago and used a basic camera. After having a digital camera for a few years I was disappointed with the wasted film from horrible pictures. My friend was with me and used a digital camera. All of his were of course excellent, because he could erase the ones he didn't like and retake them until the shot suited his fancy. He could also record a message with the picture so he remembered where the photo was taken.
In gathering my gear I have been extremely weight conscious. Right now I'm looking at a 30 pound pack weight, with five days of food (2 lbs a day) and a full 100 oz. camel pak bladder (7lbs).
My casio camera with charger would be 1 pound. I have a very large memory stick, so running out of space isn't an issue. I understand it will be a chore to recharge it from time to time, but if I conserve battery by shutting off the LCD screen, I won't need to do it very often. I'm also not worried about it getting wet because it will fit in a small dry bag I have for my sleeping bag. (I know a trash bag works but my best friend had a horrible experience with soaking wet down sleeping bag...not necessary, but will be a peace of mind while fording)
For those of you who have experience with digital cameras, what are your thoughts and experiences with them while thru-hiking?