I know that most people will tell you that you don't start brewing beer to save money because with all the equipment and ingredients and such you won't end up saving much, but it doesn't hurt to try. Especially with Canadian beer prices, and especially when you're the typical broke-ass university student, every little bit helps. I try to buy all my hops and grain in bulk, and with my lab equipment I can keep culturing yeasts as long as possible - these things help to save $10 here and there. In buying base grain, To have to buy Marris Otter or other darker base malts, Pilsner malt for especially light malt, and 2-row for neutral american bases gives me 300% the spending that I would have if I were to just buy one type of base malt at a time.
So the question remains: Is it completely necessary to buy Pilsner malt to make a Pilsner?