GreensAire 24 in good working order, made in 1997(?). I think Jacobsen dealers now support this product for parts, etc. I was told that new ones go for something like $10K, but don't quote me on that. Does a great job aerating, but the travel speed is too slow for me and my customer's giant lawns. It would be ideal for smaller lots with really nice turf. Does well on the trailer. Will sell for $1200 firm. Delivery possible within reason.