I'm currently investing moving our sites (a network with 1M+ visits/and 12M+ pageviews) from Drupal 6 to Rails.
We have a large amount of custom code (I've written 20+ modules for this platform), and yet we've gotten to a point where we really want Drupal (and PHP) out of our lives, because it isn't worth the headaches anymore.
I'm currently investing moving our sites (a network with 1M+ visits/and 12M+ pageviews) from Drupal 6 to Rails.
We have a large amount of custom code (I've written 20+ modules for this platform), and yet we've gotten to a point where we really want Drupal (and PHP) out of our lives, because it isn't worth the headaches anymore.