Hi,
Indeed Iams,Prodiet,RC, and friskies isn't that good. But no matter how junk food they are, they contain at least a little nutrition but it isn't much.
Well... you can try out Feline Caviar if you don't mind. It isn't exactly that pricey but it is a reasonable and good food. You can try buying sample pack first if you want :) Or if you want Acana, my nearby petshop sells that 1 kg(pacafica ocean) for Rm 20. You can buy sample and try it out first