[raxxorrax]

Maybe, but certainly there is a distinction between that and me keeping the 5 bucks?

[nopenotthatway]

Risk and return and depreciation.

[raxxorrax]

True, but then it makes no sense to group them. Because one kind of asset can form bubbles much more likely and frequently.

[kortilla]

You still group them. All assets have risk, return, and (possible) depreciation.