I confess, the main reason we haven't given the kid organic milk all the time was my own laziness. If I bought milk, it was usually at CVS, which is a block closer than the grocery store.
The 2x cost would get to me, too, sometimes, if I was feeling even slightly cheap. Yes, honey, that's your dad: cheap and lazy.
Anyway, while I was in Las Vegas, my wife switched us over to organic full time. She said--and I had to agree, because I'd noticed it, too--that the regular factory milk always seemed to go south well before its printed "sell by" date, which kind of made her nervous.
Besides that, of course, the presence of bovine growth hormone and anti-biotics in most milk is significant enough to rate it #5 on the list of the top 10 foods where organic makes an actual difference. So here we are. [#1, by the way, is baby food.]
That list, by the way, is below. I'd seen it referenced all over the web--it's something of a crunchyweb staple now, often quoted without question or citation on organic/green gear and food sites--and I tried to trace its origins. Not because I doubt it, really, just because the research studies mentioned are all kind of old. Unfortunately, Mothers and Others For A Liveable Planet, the non-profit who put it together, ceased operations in 2001. If anyone knows an updated list of high-impact organic foods, please pass it along:
1. Baby Food
6. Bell Peppers
8. Green Beans
Ten Must-Eat [sic] Organic Foods [Living On Earth]
[update: nice timing. Treehugger posted a fresh (sic) list of the most pesticide-laden foods, i.e., the top 10 to eat organically. With spinach temporarily off any list right now, though, maybe they could go to 11?]