great question. the issue is: does our generation still collect things for a collection? I use the 7 years term as a comparison because this is what I find to be a decent time of keeping something before calling it a collectible. So... 2 examples. A friend of mine is into designer bags and already has a bunch of them. Brand new, not worn, labels on, in dust bags, in controlled environment. She told me that one of the bags she has almost tripled the value in 7 years. I find this really great. Another friend of mine is into puzzles. Actual designer puzzles. He also made in the past 7 years enough money (by trading these kind of puzzles) that he managed to pay a really big deposit for a 370k house. Who would say these sort of things are actual worth investing money in? Anyone else, other specific ideas?