TOFO
One reason I retain my membership is that the MiL
loves the ambience. She visits Buck House every year and even just a quick brush up before the visit and afternoon tea afterwards is a great treat.
OTOH I can nip out, do a bit of shopping, then enjoy a refreshing shower before tea and the drive home.
Also I wonder how many people avail themselves of the discounted parking in the Mayfair car park?