The one pictured looks like a new return or new liquidation.
He has more than 10 of them, so the signs are pointing towards new liquidations.
Lower string guard not pictured - but you might still get one with it.
"Used" covers his liability in case any defects/scratches etc ... smart business on his part.
He has a LOT of Lowes type stuff listed - so he made a big disposal buy from a store.
You probably saw this new one with battery & charger for $200
https://www.ebay.com/itm/Kobalt-80-V....c100010.m2109