The problem with most vegetarian's arguments, including the ones presented on this forum, is that they assume that omnivores such as myself care about these arguments.
1) "Eating meat is murder, animals suffer, the process/handling/farming is wrong."
And? So? I used to live in a farming community, and I have been to many butcher shops. I also have hunted and fished. None of that bothers me. Everything living eventually dies. There are many omnivorous and carnivorous species in this world that kill other animals. Why should we be different?
2) "Eating meat is unhealthy"
No, actually it isn't. Or, yes it is. You cannot say that eating one particular type of diet over another is better or worse, because the devil is in the details. I submit that the vegetarian who eats nothing but celery and tofu is just as if not more unhealthy than the person who eats nothing but burgers.
Judging by our collective waistlines, the most important issue for Americans in terms of nutritional health is clearly portion control, which for me is a lot simpler with a reasonable amount of meat at every meal, since that is what makes me "feel" full. Diet is such an incredibly personal and varied decision that you really can't make an argument for one broad sweeping thing over another.
3) Eating meat is an "energy sink"
And? So? Human existance is an energy sink, should we all kill ourselves? Human beings use an incredible amount of energy and resources, especially in developed worlds. When those resources become more scarce and the price goes up to where it is beyond economically feasible, the market will shift away from them. Until then, the fact that meat is relatively inexpensive and widely available proves, de facto, that there is not a major problem with it's supposed inefficiency.
By the way, animals are not always a sink in terms of cost vs. nutrition. I would support the use of more grassfed farm animals in order to cut back on fossil fuel and other products. The best milk actually comes from clover-fed cows... if you've ever had it, you can really taste the difference.
Personally, I love pork, the pig is definitely my favorite animal when it comes to eating. My people, the Pennsylvania Deutsch, have elevated pig farming and eating to an art form. It's actually very low on waste, too - as my mom says we use "everything but the oink".
Suddenly, I am very hungry for some bacon...