School Project or should we get a color printer?

Debate in my house...I want a color printer.
Hubby says not worth it.
I think he "May" be right (this time)
Can't beat the convenience of having one, but the ink....expensive.
So I am tracking what I spend on color printing..so far 1.00 for this project and I think 1.00 for another one.

Pretty good looking Food Web isn't it?