Since they are so expensive I still use them if they have brown spots , just scoop around the bad spots. I buy them by the bag at Costco. I think there are 5 avacados for about $6-$7, so not cheap. In our grocery store theya are about $2 a piece or more. I try to buy them fairly firm and leave them on the counter to ripen. When they start to get soft when you press on them, then I put in the fridge and they will stay at that ripeness. I have kept them in the fridge for weeks and they are still good. Just don't put in the fridge when they are hard they will be terrible.