I would expect SSD drives to be built with reasonably modern flash devices that can take 1M write cycles [1]
[1] Flash memory is generally in blocks, which are erased to logical one, and can be written to logical zero. A "write cycle" in this case is a full erase and write zero on any cell. So as long as you don't have really stupid software that uses the same position over and over (and flash filesystems will write a zero(s) to mark something "deleted", rather than just erase it all and write over it - this reduces the number of writes to the same position).
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Mats
