It is true that the principle behind the creation of bitcoin was to make it as easy currency to transfer the funds form one point to another or in simple words easiest peer to peer transaction experience. But with the time people took it completely in wind way and starts making the investment instead of transactions and thus the bitcoin got the status of greatest asset ever and it also broke all the record in very short period of time. So I'm pretty sure that now bitcoin will used as an asset only and there is no coming back from it because man just look at the number of investors here and they all just waiting for the rich status to obtain by suing bitcoin itself. :-)
I think its not our fault because bitcoin itself got so much powerful that we had no option but to adopt it in that way. But let see we still have scope of the bitcoin in future as financial institutes from real world still have nit got any interest in it but they will surely.
Normal human consciousness will normally not want to quickly spend something that can also serve as an asset and increase in the long run, but that does not mean we do not have spenders at all. After all, I still used part of my bitcoin to buy some groceries recently so we cannot just assume that no one is spending.