I don't think that bitcoin will be stable sometimes in the future.It is really hard. I suppose that if oneday bitcoin is stable, the benefit it can bring will not much.
When bitcoin will become stable, it will not give benefits to traders as much as it is now. But on the other hand, bitcoin will be used by more people and will be used for buying selling goods too.
I know what you mean, but we cannot ensure that prices will continue to fluctuate, and we cannot expect that prices will continue to stabilize? price changes are influenced by many things and prices will continue to move fast or slow depending on certain situation..