Deals-All-Year (99.7% approval) has the Canon EOS 5D Mark IV body for $2159 for a limited time. This item is likely grey market, but should still qualify for a Canon warranty in our experience.
Canon EOS 5D Mark IV $2159 (Reg $2799)
If you're not comfortable with grey market items and are still interested in an EOS 5D Mark IV, there is currently a $500 instant rebate on the camera at Adorama.
Canon EOS 5D Mark IV Bundle $2799
Cameras have a life cycle, and prices drop as they age because perceived value is less. I've never bought a gray market camera, but most seem to be happy with them. Like others have indicated, if you know what you want, and are patient, a special 1 day deal will pop up and you can snag it.
Nikon and Sigma buyers need to be very careful of gray market, Nikon USA refuses to repair them, and Sigma charges what amounts to a fine on top of repair costs for a gray market product. At least, Canon backs the product.
I got my 5Ds and 100-400 II via Deals All Year and have no complaints. Though Canon has a history of honoring the warranty on gray market items, I assumed when I bought them that Canon might not. The savings made it worth it. (No issues so far, knock on wood.)
Other lenses I bought locally because the savings was much smaller.