I have been saying it to basically everyone around me that Bitcoin will be one of the better investment options, but still people didn't want to take me serious. If you realize that at the moment the big boys (mostly institutions) will enter the market, even current prices will look like a joke. Main advantage is that all their money in Bitcoin is basically safe from any kind of threat coming from banks and governments. It's called pure freedom. I am sure they highly value this feature.
You will see five-liter, but you just had to invest in Bitcoin last year and until now your investments would have brought very good profits. Of course, judging by the forecasts for the future, even today to buy Bitcoin will be a very profitable option.