My '14 T&C came without a spare so I bought the kit for about $300 and mounted it myself. Last summer, I had a blowout in a road construction area and couldn't pull off the road for almost a quarter mile. The tire was shredded, it was over 100 F, and AAA said it would be almost 2 hours for help. Even though I'm 77 years old, I put on the donut, finished my business, and the spare is now back under the van in case I have another flat.
If they want to sell it without a spare, at least give me the option to buy one already installed! Let me decide if I prefer a tenth of a mile per gallon and a semi-useless can of goo, over the emotional comfort and convenience of an emergency spare.