r20,
I think the point many people are making is that it only makes economic sense to be a member if you use the facilities reasonably often.
My business activities take me to London often enough for me to use the Club every few weeks and, depending where I have been during the day, I sometimes pop in for a drink on my way back to Euston before wending my way home. It therefore makes sense for me to retain my membership and I have been a member for over 40 years.
However, once I retire I will have to review whether, particularly in the light of the revised subscription for "retirees", being a member continues to make sense. I live Oop North, so visits to London will be few and far between.