I have the same experiences as Merry, well, from a lot less flying at such speeds since 2001. He knows everything.

The only item BA should not shelve is the Supersonic Certificate for first time travellers. It is a unique souvenir in this elsewhere so homogenized industry and will be remembered and passed around for lifetime. A better (and even now affordable) publicity for BA and the speedbirds is hard to imagine (AF did away with it many years ago - I then asked the crew to sign a menu or some stationary as long as those items still were handed out).

Best wishes for BA and the SST.