[foobar33333]

Don't really agree with this. It like saying "why did you use a phone to do that math when a simple calculator or even pen and paper would work"

Sure it would work, but the phone also works and does way more. You might be able to use some trivial processing on duck hunt but it won't work on anything slightly more complex so why would you bother learning a method that only works on the most basic of games when you can develop something that can be applied everywhere.