I consider that a good investment at all valuables including gold. As well as real estate. You can buy houses and apartments abroad, and lease.
Gold can be a decent investment since you can buy it in smaller increments like is possible with Bitcoin, but real estate definitely not.
Real estate is something that not everyone can afford to invest in since you need to have a decent capital in order to just buy yourself one property.
Beside the fact that not everyone can afford to invest in real estate, it may takes years before you as average property buyer are able to make profit.
With Bitcoin people can benefit from short term fluctuations and also a long term investment at the same time. What more can you wish for as an investor?