Originally Answered: Organic, free range eggs?
What happens to the chickens that aren't producing eggs anymore? Do they have a retirement home, or are the slaughtered for consumption?
What happens if a chick is actually male, what happens to that chicken? Are they put to death, or raised for slaughter? Would that mean I'm indirectly contributing to that industry?
If they're free-range, that means that they eat insects found in the fields. Are you comfortable with not being close to the source on that food chain? If they're "vegetarian" chickens, then they're not eating what they want.
Edited to add: I wasn't judging or anything like that, these are the questions that I asked myself before becoming vegan. I personally can't verify the treatment of the chickens for the eggs that I have access to, since I don't really trust the labeling. Since you are verifying it, you're in a MUCH better position than I am. You wouldn't be alone, since Jason Mraz (singer) eats only the eggs from the chickens from his neighbor (http://supervegan.com/blog/entry.php?id=... ignore the hate, it's just the first thing that popped up on a search).
I personally have issues with my placement on the food chain, but that's something that's unique to me given my own personal religious beliefs (my interpretation of ahimsa) and education (bioaccumulation). The question asked for possible arguments for why it would be bad for the animal, and that's what I gave.
The OP appears to have done the research. Given the amount of thought and research given, I'd say the OP is justified in supporting this farm and purchasing these eggs.