Note that in general there is two types of NAND flash, SLC (single-level cell) and MLC (multi-level cell). MLC is cheaper and denser, but isn't as fast and doesn't last as long as SLC.
His cheap USB drive was most likely MLC so it's pretty amazing that it lasted for about 90 million write cycles.
http://www.sandisk.com/Assets/File/OEM/WhitePapersAndBrochur...
Note that in general there is two types of NAND flash, SLC (single-level cell) and MLC (multi-level cell). MLC is cheaper and denser, but isn't as fast and doesn't last as long as SLC.
His cheap USB drive was most likely MLC so it's pretty amazing that it lasted for about 90 million write cycles.
http://www.oempcworld.com/support/SLC_vs_MLC.htm