I picked up 5 bags of these (3 Wheat Crunchies and 2 Nik Naks) last week - I thought it was only at the store at Liverpool because there's a special "half price" sticker with 1 pound hand-written on it, suggesting it was some sort of stock clearout. Got to say that replacing scampi with another flavour (pickled onion) was a mistake for Nik Naks...surely the worst flavour of the original three was Nice'n'Spicy?!
Reminds me of a few years back when Walkers "savoury" pack would include barbecue flavour (surely that's a "meaty" pack flavour?!) and not include pickled onion! The best three standard Walkers flavours are pickled onion, worcester sauce (which was "banned" for a while!) and prawn cocktail, but they've never put those 3 flavours on their own in a multipack
