I know there were 8 packs for £1.02 which is certainly cheaper, but if:
a) none in stock of the 8 pack.
b) you don't want that many.
Then this is better.
The five pack is £1.39 or so and the Ice ones were 35p each, which seemed more normal. The 16p each seemed like a misprice.
Were on the side shelves at Coventry Cross Point about two hours ago, the peppermint and spearmint were 16p per pack (10 in a pack).
So yeah, cheap chewing gum!