I don't think the limited number of flash-erase is a problem, even if you rewrite the whole flash-disc. For an example, if you have a 64Gb flash-drive with 100Mbyte/s write performance, it takes >10min to write the whole disc. As current flash-memories support >100000 erase/block (and some as many as 1000000), it will take more than 2 years *writing time* before you hit the limit.

I just have investigated suitability of SSD for company purposes. Wear levelling is nice but what in case if you want to rewrite complete disk periodically? Ie. collect tens of gigabytes of data, process, erase, collect another batch of data the next hour etc. If your data roughly fits capacity of SSD (which is likely due to small capacities of SSD these days), no wear levelling will help you, that's the fact. I think big RAM disks would be helpful in this case, but it is not easy to obtain 64 Gig RAM drive for reasonable money these days :-(

"SSDs all suffer from the limited re-write life of Flash memory." sigh http://en.wikipedia.org/wiki/Wear_levelling

Hoping that some bright spark will pair up a decent 8 or 16GB Flash drive with 128MB of standard Dram as cache. SSDs all suffer from the limited re-write life of Flash memory. a 128MB DRAM cache should be more than sufficient to blunt the number of re-write operation to the Flash to something far more manageable.