That I think is the point being the first recognized commercial soda defines the category. I didn't get it from the preamble because I wasn't aware of Dr. Pepper's iconic status.
I usually drink water flavored seltzer but I'm going to have a Dr. Pepper today.
I raise a small flock as well. I always joke that my eggs cost about $100/dozen. With the number of raccoons, foxes and hawks roaming near my property, I've had to invest a couple thousand of dollars in electric fencing, hawk netting and coop materials like hardware cloth or my chickens would quickly disappear.