Time to abandon large mechanical hard drives?

Time to abandon large mechanical hard drives?
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I did 4TB upgrade to 6TB and the whole process
of backing up and fixing partitions took best part
of half a day with Linux.

Never heard of such things.

But I remember back in May I did a 3TB to 4TB upgrade
and it took best part of half a day with Linux as well.

So these numbers seem to be real.

(With windoops, you may as well reserve one or two
weeks to do same feat ;)  )

That was all done with dd and gparted.
The dd alone took 30,000 seconds with 150MB/sec
transfer rate.

These numbers are going back to the bad old days of
windopws when whole working days can be lost from
a minor disk mishap.

With these sorts of bottleneck delays hitting Linux,
there is potential to loose 2 working days with a disk mishap.
Thats several thousand dollars per incident minimum.

Time now me thinks to ditch mechanical hard drives
and go full on with SSDs for big storage.

The only thing standing in the way is high price
SSD storage. Also the effort to make larger  
commercial SSDs a little weak.

Samsung and Sandisk aiming for 3 and 4 TB disks
soon but what the market needs is 6 and 8 TB
disks as commodity item.

China has ramped its production from commodity
quantity 16GB SSDs to 64GB for same price in
under 1 year. If they keep the momentum,
the 256GB SSD would become available for
similar price next year. That would then
be the signal to produce 6 to 8 TB drives
at affordable prices.

Their speeds also has to improve with
faster sustained throughput using
more parallel channel based interfaces
custom built by some Linux fans familiar
with FPGAs and Linux drivers.
The controllers also need improving.
May be they need to become big ARM
chips running full blow Linux to  
manage these TB flash memory chips? :)