Have the buffets on FGW 180s been refurbished to the same standard as HT ones? As they aren't even used it would seem a bit pointless installing any new equipment in them.
Yes, and why is it pointless? Angel Trains presumably wants the sets in similar condition with a view to future use. I don't know whether the buffet set-up on the GC 180s is the same.
A factor in the buffets not being used at the moment is probably that the FGW franchise has less than a year to run. In order to operate the buffets, FGW would have had to take extra stewards on its books and alter the contract with Rail Gourmet for the trolley services that were provided on the Turbos previously used on Oxford/Cotswold services, so it's presumably rather more straightforward at this stage to keep the trolleys.