Its not a disorder unless it inhibits "normal life" (no such thing

) outside of your hobby! If you said you were passing up dates with Playboy's finest to work on airplanes, or shutting the door to your workspace "exactley right" 17 times in a row, then you may need to get a little help.
It sounds to me like your asimply a proficent, goal oriented builder. The perfect model, may be a white elephant, but thats OK, some goals a better to be strived for and not achieved.
LETS SEE SOME PICS OF YOUR GEORGOUS PLANES!!!!!!!!!!!!!!