Second hand color calbration sensor is $100-$150, that's a professional quality one. And with the calibration taking 3 minutes every few weeks (if one is punctu

Second hand color calbration sensor is $100-$150, that's a professional quality one. And with the calibration taking 3 minutes every few weeks (if one is punctual) it seems that you want an Apple monitor because it's an Apple monitor and not because its color reproduction is good.