I eat meat because humans are omnivores by nature and meat is actually good for humans. Yes, animals do suffer quite badly in factory farms, but I don't support factory farms at all and I only buy organic meat, which comes from animals that live good and natural lives. As for the slaughter part as long as they're killed quick and painless I don't really care. BTW, I am a HUGE animal lover.
I actually pay more for meat, I only buy organic meat. For me animal welfare is the top priority when buying meat. I hate the way animals live on non-organic farms. If people keep buying organic it becomes less expensive.