@W3bbo:Yes, typically, the failure of a "platter" drive tends to leave more options for recovery, but my point was simply that all hardware can break, and all failures can be unrecoverable.
A "platter" drive can fail and be pretty much unrecoverable... dead motor, dead actuator, seized/failed spindle bearings, fire/water damage... I've even seen one where the head fell of the end of the arm... don't ask me how that happened.
Short of sending the drive to an expensive specialist service, to disassemble and perform some black-magic miracle salvage, it's pretty much game-over for any number of situations.
All of which simply means that you need a reliable and easy-to-use drive recovery process that doesn't rely on the drive itself.