I am an Ovo-Lacto Vegetarian. I can't give up eggs and dairy products, tried it, became VERY ill (that's with using replacements like soy milk), so it's more for my health. Plus no animals are killed in the process which makes me feel much better about it.
I get so many people who rag on me for being a Veggie ESPECIALLY family, and the whole, "well why don't you eat seafood, that's not meat" really gets to me. It IS meat, it was living, and that's all that matters. Plus it tastes gross.