I took delivery of my Model X 2 months earlier than my requested delivery date. As an incentive, my DS threw in free all weather mats for the 1st and 2nd row of my 6 seater. Apparently they have been on back order for the past 8 months and just came in today. I've had the tough-Pro mats from Amazon which have been great, and I'm not sure its worth replacing them with the official Tesla mats. Should I keep them or sell them? Retail price is $340 for the set.