We must understand that bitcoin is not a make money scheme or bank scheme to offer us good interest. It’s a payment system which is better than fiat so in other words, it’s just a kind of money which you hold with yourself. There is no point to ask for returns if we are holding our money with us (no matter in what form).
However, being in the early phase there are lots of growth opportunities in terms of price appreciation (which we have experienced sine 2010) and hence I think, it is better than interest.