A comparable blend over a true protein will only save a few dollars, and I'm sure it doesnt taste nearly as good.
The Metabolic Drive is like 13 a pound, compared to 11 or so at trueprotein. I dont know if they charge shipping or not either.
If cash is a huge issue, buy 2 jugs of the Grow! protein and use 1 scoop of each in every shake, cuts the cost in half.