There were a number of these fortified wines which were popular in central Scotland because of their strength to price ratio: Eldorado (now appearently making something of a comeback), Lanliq, VP and Four Crown spring to mind, and Melroso in the east, with a few more localised favourites. For whatever reason, Buckfast (originally intended as a "tonic" for older people and advertised in publications like "Woman's Weekly") began to predominate and eventually came to have a virtual monopoly. It continues to be hugely popular, to the extent that I have often heard its aficionados ask simply for "a bottle of wine".