I had an eccentric, hoarding great uncle. Unfortunately, he mostly just hoarded phone books and TV Guides (he did leave everyone a sizable chunk of money when he died though, God bless him).
Some years ago (ten, twenty?) there was a story in the Milwaukee Journal-Sentinel concerning another old bachelor who died. After everything in his residence was disposed of, someone checked out his garage. In it they found a mint condition car from the thirties. You never know what you'll find in an old guy's house.