Re-Stain or Replace doors?

[Heath Thomas Jr]

Hey all- Designing my SOW for a new project. Our last project didn't have very many useable doors throughout the house. 

This new one has close to 10 interior doors. My question is: Is it easier to refinish/ paint the existing doors to have them go with our color scheme, or should we just buy new ones? 

Keeping in mind we will be adding 2 new doors so they would have to match, which I think we could find easily.