About 3 years ago I wanted to try some different pairings with the creambacks in my '74 4x12. So I jumped on ebay and craigslist and found multiple sellers offering vintage greens, blacks, creams an everything in between. I chose a green and black from 2 of the myriad sellers. I paid $200-$250, and have been very happy with them. Cut to now, and here's a single guy selling a blackback quad on ebay. He's also got them up on reverb for $50 less. Also on reverb is a pristine '70 greenback pair for $1500. Maybe there's 1 or 2 more blackbacks up as well on reverb, but then that's IT. Am I missing something, or have we reached the point where, 45 years on, a '73 greenback like I easily found 3 years ago is finally getting out of reach?