Originally posted by Ash There will, however, inevitably be damage done to the camera's USB port by virtue of repeated connecting and disconnecting the cable on the flimsy port.
Actually the SD card locking mechanism is more fragile than the USB port. Very frequent card changes can wear it out fast and unfortunately then the entire card reader has to be replaced (not just the locking mechanism) due to its construction. In the service center we've seen so many worn out SD card units from PDAs, cameras, etc...
With normal, average usage you probably replace the cam sooner than the locking mechanism or the USB port wearing out. It's an issue only with very frequent usage.