What a lively discussion this is! There are very valid points in almost each and every post.
In my household, we hunt and fish for most of our meat. I started raising chickens last year for eggs and meat, and rabbits this year. I would love to have a small farm, but do not have the land i would need to do it on the scale that i would like. We do what we can with what we have. I still occasionally purchase pork at the store, but have not purchased beef in 15 years. It has been 9 months without purchasing chicken. We raise a garden every year, and provide most of our own veggies. There are a few things that I just cannot grow. Everyone around me can, but I am not doing something right. I buy those at the store. Most of my purchases at the store are things like oil, flour, salt, pepper, etc. I do purchase some items for quick fix meals when we are time constrained, or (more likely) when I haven't planned ahead. We have lots of little life emergencies with 5 kids ranging in age from 12 to 27 and a couple of grandkids.
Having said all of that, I still spend a significant amount at the grocery store every week. We do have a farmer's market near by, but it typically has the same items that I grow, so I don't frequent it much. While I don't like the way battery hens are treated, or the cramped conditions that cattle are raised in, I do see the need for the producers to offer more for less. I used to hear my parents and grandparents speak all the time about life when almost everyone farmed in one way or another. My granddad used to complain all the time about farmland being gobbled up by expanding cities, etc. Another thing is that Americans, as a general rule, are lazy. I have several friends who don't garden at all, because, in their own words, they don't want to work that hard. I can see that my lifestyle is more involved than most of my friends. I spend a lot of time dedicated to improving the soil, weeding, sowing cover crops, composting, feeding, watering, preserving, etc., but, to me it's definitely worth it to appreciate the life that eventually sustains you, whether it be plant or animal.
To answer the original question, would I eat cage eggs, yes, if I had to. I hope never to have to.