Pros
– food is much cheaper
– you feel generally healthier
– and you lose weight for no good reason
– you are forced to become more creative with your food and are introduced to new great flavours
– and thus learn a lot about food and what makes certain things taste good
– when you eat meat on the weekends, it tastes sooooo damn good
– and you need less of it to feel satisfied
– you get to act morally superior to everyone else 5 days of the week!
– that last one was a joke
 

Cons
– it’s harder to eat out and sometimes you’re just too lazy to cook at home
– it also takes more time to make vegetarian meals at home
– if you don’t have enough protein in your meal, you don’t feel full
– you get to eat some of your favourite foods less often
– sometimes you’re really hungry but not at home with no decent vegetarian options nearby, and you have to settle for — *shudders* — a veggie sub from Subway. these feel like the worst days of your life.
– you experience first-hand the stigma associated with anything vegetarian