Ok. What were they used for? Methane production? Idols for a strange bovine based cult that folded? To provide milk for our tabby overlords?
Also, do the Kelly Blue Book people keep track of cow values? Is a used cow a better investment than a new one?
First thing I thought of was, “There’s a Gary Larson cartoon in this.”
I don’t know what they were used for, but were I in the market for one I’d check it over pretty thoroughly. Used cow dealers are a shady lot, and it’s not uncommon for them to roll back the uddometers to make you believe they’ve got low milkage.
Yes, its better to buy a slightly used cow. You still get the new cow smell, but some other sucker takes the big hit in depreciation for driving her off the lot.
Isn’t a used cow a hamburger? A rib eye?
My husband maintains a fleet of used cars operating under some systems principle: Redundant Array of Inexpensive Discs. We call ours a RAIV(ehicles). I’m thinking we may be able to save some money by implementing a RAIL(ivestock)
The first thing I wondered was, “Just how were they used? And isn’t that illegal in most states?”
Weird? Me? Why do you ask?
I’m guessing they were used by bulls.
Non-virgin cows aint worth shit 
Well, there’s the double standard for you: a bull gets laid and he’s a stud. A cow gets some action and she’s just a piece of meat!
Yep, aint life a bitch
Better than used sheep.
You speak with the voice of experience?
Sometimes, life is a cow.
If you think about it, a new cow is a newborn calf. It costs a lot of feed to get one to the used state, so new ones are probably cheaper.
That’s a pretty common slogan for the trucks that haul off dead cows, “Your Friendly Used Cow Dealer”. Doesn’t appear to be what they are selling in the OP, just be careful about buying one off a truck 
Probably move more product if they substituted “Pre-Owned” for “Used”.
There’s a dealer here in high-end used cars who substitutes “previously enjoyed” for “used”.
That would look really sick applied to cows. (or sheep)
Do they have leather upholstery?
Yes… and four on the floor.
Proposed Slogan::
Have a Cow, Man!
