What defines A might not define B. Keeping Bitcoin requires a lot of Patience which means you will have to hold onto it for a while before it start yielding your desirable profit for you whille in terms of money, I don’t think money can be held onto for a very long time because one would always need money for a lot of financial support at every point in time, which you won’t have any other choice than to tamper with it compared to BTC. For example, it is easier for me to remove from a particular money that I have been holding for a quite a while because I am in an urgent need of a money, whereby I am determined to return it back once I am financially stable again but in terms of BTC, It won’t be as easy to tamper with compared to how easily for me to have deduct from the money I have been holding on to. People see keeping bitcoins as another means/source of investment. In other words, you can keep a particular sum of money for maybe a duration of 2 years or probably 3 years without removing a dime from it, while it is possible to keep a particular amount of BTC for a duration of 5 years or even more. When you are financially down, it is easier to remove form the sum of money you have been keeping for the past 2 years compared to tampering with your BTC.  Lastly, money and BTC are 2 different things and they serve quite different purposes at one point or the other.