Flash Memory vs Hard Disk

"Will  flash disk prevail over hard, magnetic disks?"

I came to an interesting article in the internet, saying that it wont and how flash disk is so much more expensive than hard disk. But how much longer will it take for flash disk to catch up? I mean, considering the price of flash disks before, it surely has dropped in a tremendous amount compared to what it was then. I'm not saying that hard disk wasnt dropping prices but considering the trend of the price drop, I wouldnt be surprised to hear or see that the prices of it is at a 1:2 or even better, a 1:1 ratio on HD price vs Flash.

Just take CD vs Floppy for example, back then, CDs were much more expensive than floppy disks. It was too overpriced and just to have a cd reader, or cd-rom, would cost you a lot. There were a lot of issues back then too, but then, CD prevailed over time right? It's just a matter of giving more time to advance the technology that we have now.

Flash started to a point where HDD was already being used for so many years. It has an unfair advantage of say like, tens of years, and judging Flash to be the one losing should not be the case. Compared to growth, I’ll say flash grew faster, and I say that Flash memory shall prevail in the near future. It's just a matter of time until someone discovers something that will make flash memory, the new primary choice of storage. Until then, we're stuck to the hard disk which sucks up electricity a lot, huge, has life spans, and can only rotate for a limited amount of time.