Self-help Seminar of the Damned

In today's Dinette Set, the gang attend a Tony Robbins seminar; the concept of why these people are attending should be puzzling enough but the reader is more puzzled by:

• After de facto admitting that you can't accurately draw Tony Robbins, by showing him from behind, why did the artist allow her zeal for a worthless vanity gag override that realization by showing, in the mirror's reflection, the face of Psychiatrist John?
• How divorced from reality must one be to believe you can get into a Tony Robbins Seminar for $25 dollars?
  
• "If you can't motivate yourself, who will?" was apparently deemed so damned funny, it was included twice?
• How long has it been since we've seen the screen door pants? Seems like forever.