Yes, that is 9 gallons of the good stuff. A local TruValue hardware store was selling off their old stock of the "environmentally irresponsible" thinner for $7.89/gallon. I bought all their stock.
I should be fixed for life.
Or perhaps I'll be like the lady who is selling off cans of pre-EPA formula Brasso on eBay, one by one.
(If you haven't been following my paint thinner odyssey, you can catch up here and then here.)