Ecoflow River Pro Power Station ($430) + Extra Battery ($700) at Costco

For those of you that missed out on the Ecoflow River Pro power station deal from Costco, they are back in Costco.
Ecoflow River Pro with extra battery (1440WHr total) $699.99:
https://www.costco.com/.product.100716886.html
Ecoflow River Pro without extra battery (720WHr) $429.99 :
https://www.costco.com/.product.100716905.html
Not sure if this is a good price or not but they also have delta in stock.
EcoFlow Delta $949.99:
https://www.costco.com/.product.100716860.html