Two words: LACTOSE INTOLERANCE
There's just something about Cool Whip that makes everything better! Up until recently it didn't come in a can, but I'm thinking that wasn't such a bad thing. Cool Whip should not be sprayed, it should be dolloped onto your slice of pie or pile of fruit!
You can even use Cool Whip in place of frosting. Can you do that with whipped cream and not have it separate? No? Well, there you go then.
I'm thinking that you could even use Cool Whip for fruit dip, and I know you can't do that with whipped cream!