Below is an example of how a specially shaded drawing would look once vectorized. As you can see, the vector version is cleaner, and has some shading to make the appearance resemble the original closer. The vector converted image is cleaner, printer friendly, and can be manupulated using vector programs.
If you need something with about as much detail vectorized, you should always get a quote and opinion first before proceeding.
You can upload a quote for a speedy and efficient process here: Here (no account required).