Certainly wouldn't put a blue screen next to a green screen, but elsewhere in the house depends on how you feel about it.
Unfortunately LCDLP in the kits are blue screen as are the SMK and FMK, kit 5 has the LCDP which is green screen, the rest are green screens currently and a Premier LCDLP (DBD-0002) is the same keypad as you have but green screen.
It has been raised in the past it being useful to have both screen colours available, think many moons ago, it was suggested on the Texecom forum about changing the LCD display, but that was a few years ago and cant remember the outcome.