i have 2 a day....but if i was trying to bulk i'd prob add a whole bunch of stuff to the shakes ie. eggs, milk instead of water, fruit, flax oil, oats. so it's kind of like a meal and a shake
but like sarge said (the authority on whole foods lol) whole foods are better then shakes most of the time.
I think the term "shake" is changing. I know people used to be big on the MRP's but now it seems that most mix up their own concoctions. I have 3 per day. All 3 have 1/2 cup oats, 40g's of whey, and a full banana so I think of them partially as whole food meals. While bulking I will add 2 egg whites and one full egg to them and make w/ milk - again, seems like a complete meal.
Now if I could just figure out how to make a tasty chicken shake I could really cut down on my chewing.