Choppy, you say not eating meat at all must stem from some kind of apikorsus. All I can say is, tell that to the dozens of Orthodox rabbis who are vegetarians, and the many other authorities who were supportive of vegetarianism. (See R’ Dovid Sears’ book for more information). Also, many people go vegetarian for one particular reason, such as health arguments by certain well-known doctors or tzaar baalei chayim concerns, but many go vegetarian after looking at all the arguments — health, environmental, animal, etc. — and decide that it just makes sense. If you read my previous comments, you’ll see that I do think there are certain hashkafic dangers to vegetarianism, but that doesn’t mean that’s it’s not permitted or that it’s a sign of kefira.