ISF Calibration Worth The Money?

[EQ3282]

I've noticed a couple of threads about this topic, and was wondering myself.

It seems that the argument for the pro calibration is getting the best possible picture out of whichever set you purchase. Kind of like purchasing a house and renovating the kitchen for ideal usage.

The main argument against has been is it worth it to spend between 10% to 50% of the purchase price of a set to have it calibrated when a "by your eyes" adjustment or purchasing a calibration disc can produce an acceptable/good picture. This side of the argument can be summed up as buying a brand new car, but having to put thousands of dollars into it for it to drive with optimal performance.

Have at it folks, but keep it clean and civil.