Like they said. Not necessary, but useful.
Were talking degrees of "perfection" here. The worst thing one can do is go and do a lifting workout and consume nothing for a couple of hours.
From better than nothing to "perfection," assuming that they are trying to gain muscle and eat a "normal" style diet.
1. A reasonably sized healthy meal within an hour of working out.
2. A low fat meal with good protein and healthy carb sources within an hour of working out.
3. Either low fat chocolate milk or a shake made with whey protein and maltodetrin, dextrose, or Gatorade, immediately after finishing the workout.
4. A specific post workout drink, like Surge, immediately after finishing the workout.
I doubt if there would be such a noticable benefit as you run up the scale that you could convince someone of the benefits. One has to have faith in the science.
The biggest bang for the buck (balancing money, fitness, and the psychological benefits) comes when you go from 0 to 1. Then when you hit 3, you should get more positive changes, but more from the immediacy of the nutrition and that it's in liquid form.
Getting someone new to lifting, to drink some special concoction is liable to leave them thinking you're a crackpot fanatic. Not that it can't be true...
