The way I see it unless everyone stops eating meat (which is not going to happen) its still going to be farmed and then get killed so we ought to eat it really otherwise the poor things are going to waste.
I'll buy free range eggs etc, but it doesnt bother me how its killed*, meat is meat. Having said that, I don't eat a lot of meat and I don't like meat that still looks like the animal (i.e. I will buy chicken breasts rather than a whole chicken!)
*as far as buying in supermarkets / butchers, I'm not endorsing horrible and/or torturous methods of killing