Are you / Could you ever be a vegetarian?

Anecdotal evidence is unreliable in most situations. When it comes to vegetarians versus omnivores, it's completely useless. By definition vegetarians are more selective about what they eat. They are more likely to think about what they're putting down the hatch than omnivores.

So notwithstanding any advantages not eating meat may have over eating meat or vice versa, your average vegetarian is less likely to eat junk food and more likely to exercise.

So it really has to come down to the science. Actual studying of what contains what and how the body deals with etc. Rather than meaningless statistics like 90 of vegetarians live til they're X years old or meat eaters have a higher rate of disease X.