Probably. However, since they are very cheap, and unlikely to fail immediately, you could get a lot of semi-reliable storage in a portable case. The RAID approach prevents a failure of one or two cards causing the loss of data, and they're straightforward to replace. I would not suggest it for internal data storage, but it could be useful for backup or for those who need a great deal of data on them.
The main alternative is a portable mechanical hard drive. This would probably offer a lot of benefits, but it is a single unit with no redundancy, and if the controller fails, it may not be feasible to recover data unless the drive can easily be disassembled to get at the disk. This idea wouldn't be worth a ton to me, but I'd be interested and would possibly buy one if the price was right.
Biting the hand that feeds IT
