I went through this a couple of years ago. Finding a repair person, costs of parts (you know where this is going) and scheduling time it was a much as a new one. The one I had was ten years old. Tech was updated, parts expensive and hard to find (See what I did there).
Unless you have something very fancy, look for a sale at a local hardware store. My $.02 and worth about that. ;)
not to be the complaint section here, but this darn fridge is only 7yrs old. and i just had a flat-panel Samsung TV partially die. brand new flat panel Vizio 50" was $280. crazy cheap. more reinforcement that we're in a commodity-throw-it-away-and-buy-a-new-one market. :sadface: over almost 50yrs of life, and i can count the number of times on one hand where a fridge needed service. maybe i will need to buy a replacement new fridge every other year now in the modern era? :double-sadface: