Hi! Refrigerator = 7 year old Admiral LTF2112ARB; it's a old school top freezer with no fancy electronics. The compressor gets louder in the winter and a bit more every year. Otherwise, it works flawlessly. I've been told it's probably not worth replacing major parts on it. Could I get a few guesses on how long this might last????? I'm hoping to replace it before it costs me some food.