I was looking online for Flash memory with those properties and seems like manufacturers do not publish that level of detail on their flash memory specs...

Even if the put it in the specs it may still be shady as for example, some say "Support Wear Leveling"; Wear leveling algorithms at the beginning were not implemented on the flash controller itself but on the file system level and you needed to used a file system that was designed for flash memory (like exFAT) and a flash memory that supports it... nodays it is implemented on the controller (USB pen drives have a USB flash controller inside) so the wear levelig works even when using FAT.

RobotBeat, soulc you please share with us which USB flash memory have you found to have single level-cell and wear leveling implemeted in the controller?

Also, this may not even be necessary: I checked the compactflash card I have been using in production for a month and found that the only new/modified files on it are the license file and the activation file, which means that on the latest versions, not even logging is done on the card but on the main volume group instead... So the card will only go throuh erase/write cycles whenever you do an version update, I already did 2 updates when testing the V6 betas, so I only have 9,998 updates until I have to replace the card?

In any case it will be good to know which pen drives have those characteristics, I will be migrating from ESX to ESXi botting from USB pen drives soon and here I think will be more necessary...