Cheap cat food pouches

I feed the cat these cat food pouches that are all the rage just now. They are great but they vary in price tremendously. The thing is, and I guess I'm lucky with this, but Buffy doesn't like the expensive whiskas pouches, and seems much happier when I'm feeding her Tesco or Somerfield cat food pouches which are about 30% cheaper than whiskas. Suits me.