Haha I just did a similar deal. I got the S21 Ultra 256GB in Phantom Black, 2x Galaxy Buds+, Tab S7+ 256GB Mystic Black for $827.15. Minus the $250 price match from Amazon ends up being $577.15 for all that gear. Trading in my S10+. That's a freaking steal.
The S21 Ultra is also on sale at Best Buy/Amazon for $999.99 and you can get Samsung to price match it once the phone ships. You can get a "pre-approved" price match.Make sure to grab a screenshot of the price on either site and chat in to have them approve it. You'll have to chat back in once the phone ships to have them adjust the price.
REALLY IMPORTANT: It has to be the same. IE: You cannot get the titanium and price match it for the black. You have to order the same color and size you're PMing. The 256GB Black S21 Ultra is $999.99 at Amazon right now.
These deals are the only reason both myself and my wife upgraded. Samsung got me to finally give up my headphone jack and expandable storage.