Yup, I gave up soda almost completely, same w/ coffee. Have maybe 1 of each every couple of weeks. Rarely miss it.
Now I just drink tea and water. Not even sweet tea (to much sugar), real bag-in-hot-water stuff.
For those who need caffeine but want a healthier drink, look into "Fast Lane" by Celestial Brewing (tea company in CO). Tastes good, has the caffeine of a full cup of coffee, w/o all the acidic stuff.
A side bonus is that since I'm always using hot/warm water for the teas, I've learned to be used to drinks not needing to be cold, which is way easier to maintain throughout the day.