I currently have several devices that are nothing more than paper weights now as they are no longer chargeable due to broken micro USB ports.
Add me to the users that have never broken a microUSB port. My current 2+ year old phone gets plugged into the charger at least every day, previous phones were used even longer with no broken plugs. Several other devices I've used daily with plugging/unplugging their microUSB connections. Until reading of the few people in this thread complaining about broken plugs, I would have never assumed it to be much of a problem. I am an active participant on XDA forums where many Android smartphone owners discuss many issues with devices, including hardware. The only time I've ever encountered much discussion of broken ports, it is when someone accidentally did something really stupid with the device/plug.