I work as IT support and as long as your sensible, flash drives are no problem at all. A few basic things still stand though, don't use it for long term storage and don't edit files while they're on the drive (copy them to the computer then edit them, I get students coming in to my office all the time with corrupted files because they pulled the memory stick out while it was saving).
You are right in saying that hard disks are a consumable, that's how we view them at work, that they will eventually wear out. Memory sticks are different because they have no moving parts and are thus less likely to break.
EDIT:
I should read things properly first:
sealion wrote:
personality i've had a experience of a usb stick corrupting on me. I feel that a external hard drive is alot more reliable.
iceman314 wrote:
corrupted files because they pulled the memory stick out while it was saving
happens all the time.
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