oh really? why is that?
After lots of usage, electromigration might cause damage to the
gate oxide irreversibly. The gate oxide might have a fixed charge,
or there might be induced interface charges... Something like
that...
In addition, the manufacturers of the flash memory modules
usually guarantees the assemblers a maximum of 10000 read write
cycles. The assemblers will assemble the modules on the PCB and
test it out.
10000 might seem a lot, but if you transfer movies continuously,
you will use them out very fast.