Louis,
I guess old habits die hard with me. I still use them because PS still can't simulate polarizers or the effects achieved by neutral density filters at the time of the shot for waterfalls and such. I also like my old 4x6 gradients even though they are able to be simulated in PS and C1.
Plus some of my polarizers are warming or blue/gold polarizers that have save the day at times when the light just would not cooperate. This type of filter adds color via the specific wavelengths and PS has not been able to simulate that as of yet either. I feel the use of these has added significantly to some my images enough times that I am just not willing to abandon them as yet.
But, I do understand how some may not want to use these anymore the way PP software has evolved.
Thanks again biglouis and Quentin .....