I think one of the reasons we constantly like to “banter” about it is because some of us who have been following this stuff for a long time see more of the economic/technical reality of it all.
Previous notions of Hard Disk vs. Flash Memory technology don’t always hold true anymore and can be challenged.
For instance, there’s a notion that Flash memory uses a lot less power than a Hard disk. This is no longer completely true. New technologies are allowing hard disks to run more efficiently and consume less power even as capacities are increased. On the other hand, as Flash memory size increases, more transistors are required which requires more power. I’m not saying more than hard disk technology but it’s increasing and not necessarily going down. In a lot of devices, the hard disks can spin down completely when not in use and draw almost no power.
Also, hard disks are shrinking (and continuing to do so) while capacities are rising faster than flash for similar sized units. This trend continues to erode Flash’s advantages for the forseeable future.
I think that mechanical based mass storage will eventually fade but I don’t think transistor based “flash” memory will be the thing that takes over.