Why Maddox won't be picking out my new car...when we decide to buy one...

So we were at Home Depot waiting in Dumpy the Truck while Shawn returned the power rake. A particular vehicle drove by and I pointed it out to Maddox. I said "LOOK! That's one of the cars Mommy wants to buy, you know later, but isn't it COOL?!?!" He shakes his head no and points to what HE thinks Mommy should buy, a Cub Cadet Lawn Tractor.