Jaffa Cakes: Biscuit or Cake?

The source of one of the most complex conundrums ever to challenge mankind:
Is it a cake or is it a biscuit?
These small circular sponges topped with chocolate and squidgy orange stuff have been the subject of much debate over the years. Even the British government has become embroiled in this web of snack-related intrigue. At present, the Jaffa Cake is classified as a cake but the British government is attempting to get it reclassified as a biscuit. This would mean it would come under a higher tax bracket, as biscuits are not as perishable as cakes, or something technical like that.
It is not clear how much more expensive the Jaffa Cake would become should this proposal go through Parliament, but it's possible they could move from the realms of 'everyday favourite' to become more a much more exclusive item. In which case, they could end up being treated similarly to fine wines, so that in the future, small groups of Jaffa Cake connoisseurs might be found in darkened cellars discussing texture, nose, and full-bodied flavour.