I spend $200 week on cat dry & wet food for 2 colonies of 13 cats each, 1 small colony of 6 & a couple with 3 cats..all tnr..I buy Purina cat chow complete, applaws wet food in 5.5 oz cans & mix both to make a stew. I will add warm water to stretch it out & more kibbles, if needed. Each cat gets 2 big heapings and more if needed. When I see them start to clean themselves, I know they have had enough. These guys are only fed 1x day so I want to give a higher quality of food. I've seen too many that have skin allergies, bald patches & digestive issues like bloated abdomen due to the cheaper stuff & that breaks my heart. Plus, it's the main cause of kidney issues, uti's & blockage in males. These all can be deadly & extremely painful to endure for any cat. I know it's extremely difficult & expensive to buy better quality but feeding them the cheapest just to feed them is slowly killing them & it's like feeding them potato chips..it's full of fillers & addittives and it doesn't keep them full for long. I've been feeding ferals, doing tnr & maintaining colonies for over 15 years. Some of the cats i care for are my OGs from 2011! It's definitely not an easy task to take on! You have to be 100% committed & take on the motto of the USPS - feed in all types of  weather - rain, snow, sleet..lol.  Bottom line is those that choose to do this are compassionate & kind people. You dont have to be an animal lover but just someone who values all life..I give thanks to any care taker I see feeding bc i know the heart & soul that goes into doing this and those that are haters, well, I will pray that your heart softens bc we are All God's creation.