Same problem with pears. I bought some last week and they did the usual rockhard-to-mush thing within the space of a day, all without even a rumour of flavour starting. My own fault as I know they're not in season, but I do like pears in my lunchtime fruit salad, I can't remember where they were from, but this time of year probably the southern hemisphere. Regardless, that kind of rapid demise is a symptom of long storage.