Yes, I agree. I also buy the Royal Canin Urinary S/O formula in both wet and dry. I try to buy 3 of the 16.5lb bags and about 2 cases of the wet food at one time. The last time I bought this much it almost lasted 6 months and this was with 5 cats eating it. Now Storm, Sunny, and Ziggy Stardust get some of the wet and the others only eat the dry so the wet will last me much longer. It may cost a lot but I'd rather spend it on food that will keep them healthy than on vet bills.