What exactly do you expect from a vegetarian/vegan diet?
I've been a vegan for over 15 years now so I'm naturally going to say yes, it is completely worth it. I don't want you to have false expectations though, there are many pros and (depending on what you expect) cons associated with it. I've seen many people try a vegetarian/vegan diet and expect things immediately and without any real effort on their part, this is seldom the case. If I know more about your expectations I can likely advise you better or I can direct you to another vegan/vegetarian who can.
Bets:
1. If the Wii U sells closer to 10 million LTD by 1/3/2015 I win. If it sells closer to 9.5 million LTD by 1/3/2015 OfficerRaichu15 wins (winner gets 2 weeks of avatar control)--Lost.