I was about to buy a brown marble that had cracked men and needed a couple of rods for $600.
Fortunately, Gitablock and bbtuna talked me out of it, and the next day a newer model grey marble appeared on Craigslist.
I paid $600 for it, the same as the brown, and it's near mint condition with absolutely no sign of wear. Counter said 792.
Got it set up and leveled tonight and played with family and friends. The game play is awesome!
Many thanks to bbtuna for providing sage advice and holding my hand during the purchasing process! I appreciate the generous use of your time.