cheap, durable, homebuilt aircrafts- myth or truth?

Well as far as i know the concept of home homebuilt aircraft is very
vague because it would work only the aircraft controls are very easy
to understand or a person building it a pilot himself, else, either
the aircraft would crash or it wouldn't take-off. The second thing is
that if they are factory made then such aircrafts would be too costly
to be owned by a common man. Is there really any cheap and durable
homebuilt aircraft?