i certainly think it is worth trying the 'premium' brands, just dont get too worked up if they wont eat them. You can also get better quality dry foods at good prices - HiLifes online supplier sell 2kg bags (Which aren't produced, so unique to them), and last year their prices were £6.99, it was one of the cheapest I could find. Burns is the same price, but I am a bit fussy with Burns. And if you live near a shop called The Range, they sell JWB for £7.99, which is £2 cheaper than the RRP. I know you weren't asking about dry food, but just wanted to point out there are ways of getting good dry cheaper too.