Tooling difference of a custom monochrome display VS a color TFT?

We manufacture the monochrome LCD glass in house.  The tooling portion of the mono glass is about $2500-$3500.  Because of the high expense of color TFT tooling and the high MOQ’s, we typically design around a standard TFT glass size and resolution.  If a custom color TFT display solution is required the tooling can range from $125,000-$350,000 and the MOQ would be 10K-100K depending on the design.