Her's my dilemma. If I print in color and use all the selling outlets, the cost for the 202 page book would be a whopping $30. If I only sold it on Amazon and my store, the cost would be in the ballpark of $15 as a base. For black and white the cost would be $3.27 as a base. Those prices don't include any markup for profit.
I thought I would share this with you just in case you were wondering about the cost of color printing.
Take a look at the impact of color vs black and white.