I have 6 cats ages 2, 2, 2, 4, 5, 18. One (age 5) won't eat any wet food (former feral). The other 5 have been quite happy with Fancy Feast gravy lovers. Has to have gravy- cuts/slices/shreds, they each have preferences, but it all was getting eaten. Nobody eats pate. Now 3 of the 5 only want the gravy and I'm having a lot of waste. Any budget friendly suggestions? Tried 9 Lives- not fans, Meow Mix- 1 will eat it. I really want to find something they all like well enough so I can order by the case. They all like Purina One Pure Instinct grain free kibble, so at least there's that.