[slight hijack]
I once had a vegetarian tell me that the land used to raise cattle and pigs and other animals for consumption would be much better put to use to grow things like corn and soy. Apparently the whole world could survive on that much available vegitarian food. I don’t remember any cites from this person, but that was their contention.
I told them, sure, we could feed the world on that much land, but then, where would we put the cows?
They told me I was being unreasonable, and it wasn’t worth discussing with me anymore.
[/slight hijack]
See, I eat meat. Most people I know do. Many people don’t. So be it. I don’t hunt, either. I consider it natural to eat meat for a variety of biological and historical (evolutionary?) reasons. To those who tell me it no longer is natural, and that I shouldn’t do it, I ask them to give up their cars, their synthetic clothes, their houses with heat, electricity, air conditioning, the SDMB. I ask them to give up their refrigerated foods, their GardenBurgers,their Diet Coke (or Pepsi). I tell them that to do what is natural is now “unnatural” in today’s world, and so to argue either way is kind of a moot point.
The way I see it, in the end, it comes down to an issue of right or wrong. I don’t believe it’s wrong to eat meat. If you do, then don’t, but I will continue to do so. I also don’t believe that most animals raised for consumption are in horrible “factory farm” conditions. This may not be the most educated opinion, because I admit that I don’t know all the facts. But I’ve been to some farms, I’ve taken a class at school specifically about Animal Production Systems and Industry (capitalised cuz that was the name of the course), and I go to a school that also has on its campus a very well known and respected Agricultural college. I get the impression that horrible situations are a minority . Although these animals may live in minimal luxury, they receive what they need to be content - an unhappy, stressed animal won’t eat, will lose weight, may get sick, etc, all of which can affect other animals in its vicinity, and would likely lead to a financial loss for the farmers/producers. They don’t want this, so they give the animals what they need in order to get from them what is wanted.
Someone once worded their opinions to me this way : “I believe in animal welfare, not animal rights”. Not a very powerful quote, but I think it helps describe how I feel.
In the cases where the animals are subjected to cruel situations, then these particular cases need to be dealt with. It’s wrong to assume all farms are one way because a few are. Just as it’s wrong to assume all people are one way because a few are.
BTW- The “if you wouldn’t do it yourself” argument doesnt fly well with me, either. As someone in this thread pointed out, the world (developped countries in particular) has evoleved in such a way as to minimize the need for people to know how to hunt for themselves, and so it becomes a sport. Most people don’t know how to garden, and so it’s a hobby. I can’t sew or knit, but I will still wear clothes because someone else enjoys it/is paid for it/will do it for me. Eliminate the comfy cozy society and life experience I suspect you’ve (we’ve) all had, since you had the freedom to make a choice about what you eat, and I suspect that you’d all very likely be sitting next to the camp fire gnawing away on that bone as much as the rest of us. Assuming we had the comforts of fire, of course. 
Sorry if that was a bit disjointed…but, I just wanted to say something. 