I have the rekeyable Kwikset locks, and it can be very convenient, even for a homeowner, e.g., if a key gets “out.” Not a lock expert, but done some research, and I also try to be practical. As to which locks are more secure (bumpable, pickable, etc.), most houses are broken into by kicking in the door or other means that don’t involve mucking with the lock. Maybe if you’re uber-rich and someone specifically targets you, it’s an issue, but not otherwise. So what I want is a reasonably secure lock, installed properly in the frame, in a reasonably secure frame without a compromising window beside or in the door. I’m really glad I got a rekeyable lock.