It needs a bit of work to get the mower at 399.99+taxes
It is currently available for 399 at yanstoreusa
After verifying the price at yanstoreusa go to homedepot.com and search for Ego 21inch self propelled mower. Choose the product and add to cart. the price it shows at homedepot is 499.99.
Only the battery itself is selling for 375. so this is definitely a good deal if you can crack it. YMMV though.
But after adding to cart start a live chat on that page. The agent should price match if you give them the link to yanstoreusa. Make sure you choose deliver to home and not pick at store.
thats it. savings of 100$ on the best battery powered mower out there.
Hope someone benefits from it.