What are the pros and cons of WHEY protein shakes?

There’s much info here

I get in from time to time in my Tropical Smoothie smoothies if that means anything…

Some protein shakes use aspartame sucralose and other harmful excitotoxins to enhance flavor. Watch out these can effect circulation and metabolic processes.
suggested reading.
http://www.brainsupplements.com/protein.htm

Someone I know that requires extra protein (some kinda post-surgery reason, her body doesn’t process it as efficiently as it did pre-surgery) absolutely insists on whey protein powder. I can’t say why exactly, but she’s pretty smart (Mom) so I believe her.

Pro: Whey protein isolate is a rich source of protein, obviously. And low on fat and stuff.
Con: But it’s expensive as heck.

I just eat a lot of protein-rich food instead. :/

I think you can find pretty good prices on bodybuilding.com

That’s where I get all my stuff