Hey,
Not for a long while now, companies who manfacture hard drives at present don't want to have excess production capacity or stock at hand when technology goes obsolete. SSD's are still advancing. Now the SSD is an expensive item, is hasn't moved into the 'oh yes we all have one' ... Being in an economic situation we are in manufacturers have been a bit weary about investing into SSD manufacturing capacity. So the question is asked, if everything these manufacturers are making are flying off the shelves, why should the price come down untill they can build enough to cover the demand..
So, it'll be a few years untill we see the emergence of such a price drop, but all in all, our current hardrives are holding out well enough..
Hope this was informative