Lately I've been buying a lot of bottled green juice. They have raw +organic pressed one's available for around $3-4 for 2lb of juice (which equals around 2 pounds of organic greens.)
I spent about 6 months last year living in the bush without electricity or running water. Because I couldn't use a blender and I was working full time at a job that didn't allow for much eating time, I ended up buying green drinks quite often. I wouldn't do it again. If you're just looking for a healthier diet than you had before, go for it. If you want 811 health, bottled greens have no place in your life.
dangermouse, can you please share your reasons?
Having spent a decent length of time drinking both commercial and homemade juices and smoothies, I can tell that bottled stuff just doesn't give me the lift that fresh produce does. I'm sure there's still lots of good stuff in it. I'm just not interested in having good when I know there's great available. So, like I said, if you just want better than the usual, bottled green drinks may be fine. If you want the best you'll need to eat/drink fresh.
I can't speak to store-bought brands, but there is a restaurant in my neighborhood that cold-presses green juice on a daily basis. Their bottles are not glass but they are BPA free.
For someone with a hectic schedule I'd say the pros outweigh the cons of drinking this beverage. I'd advocate drinking this for lunch paired with eating some fresh fruit, and then eating a salad when you get home with some more fruit. Basically, don't let it substitute for a salad every day, but I completely understand the convenience of having something like this if you're stuck with a 30-hr lunch break.