I have always dreamed of doing a thru-hike. I guess the only thing holding me back is escaping life for such long stretch of time. I am graduating next spring (2013) from college and really want to do it, but "will I regret being gone for 4-6 months?" "what opportunities will I miss out on if I go?"... these are the questions I keep hearing that are keeping me from committing. Any motivational words-of-wisdom would be greatly appreciated.

What kind of money should i expect to save up if I do decide to commit?