Getting points is part of the game play! I wouldn't think it would be fair if someone was aloud to buy something, get op stuff (like all the towers in TD), while someone else is not allowed to spend money on the server. Now, if there was a higher stranded of money, that could work.
Buy For Points: -1
Buy For A Higher Value Than Points: +1
Buy For Points: -1
Buy For A Higher Value Than Points: +1