I just had to share this image.  To my mind it illustrates the Drupal learning curve, perfectly.

That about sums it up.

I’m not sure where the image comes from originally, but I found it posted by Arjun at: http://athousandnodes.com/article/drupal-learning-curve

UPDATE: Several people have suggested that this image originally came from the excellent webcomic XKCD.  According to the XKCD forum, this was never an XKCD comic.   See this post for more information.