Bitcoin works in a similar manner to a commodity such as gold. When a currency struggles or an economy suffers in a recession, the value of BTC will increase because it serves to be an alternate store of value. In 5 years, I can see BTC potentially becoming equivalent to gold as a go-to store of value, if not a better one.

Both are important in managing your finances. Personally, I think dividing your assets is the way to go. A certain percentage in investments, a certain percentage saved, and a certain percentage in cash.

There's no quick fix for a failing economy. If there was, many other countries in similar situations would use BTC to save themselves as well. Personally, I see BTC as just a means of temporary 'damage control'. The fact of the matter is that a digital currency will not pull Greece out of their overbearing debt.