The $2,000 price was legit, but that didn’t include batteries. It was another $300 or so for heavy lead acid batteries, $500 if I wanted a lithium-ion battery pack (3 kWh), $710 for a bigger lithium pack (5 kWh), and $1,050 if I wanted a giant lithium battery (6 kWh).
The article goes on to say that shipping is a big deal, too. It requires thousands for a space in a container. But the total clocked under $9K IIRC