So.. the only important difference is that the Pentax warranty offers the free check-up?
Pentax warranty:
"Pentax Ricoh will provide, at no charge, one complete check-up at any time during the warranty period. This includes inspection of all camera functions to see that they meet factory specifications."
New Leaf warranty (PDF):
"New Leaf PLUS provides a true, worry free experience for your new product. We'll keep your camera working like new and if we can't, we'll buy you a new one. New Leaf PLUS service plans are underwritten by an A rated insurance carrier ensuring financial protection for the entire length of your plan. Receive the service you paid for with New Leaf PLUS. The New Leaf PLUS service plan is inclusive of the manufacturer's warranty and covers parts and labor for 3 full years from your product's date of purchase. Purchasing a New Leaf PLUS service plan with Accidental Damage Coverage provides you with added protection from unintended drops and spills".