Depends on the color and the condition, and if it has the case. I paid $615 for my first Ripper almost 10 years ago. It is one of the Ebony ones, with the original case.
I paid $1500 for one of the 20 or so fretted sunbursts that were made in 1978. That one is my holy grail.
I paid $1300 for a NEAR MINT 1978 blonde Ripper. Way too much...but hey I paid it, so someone else would too.
SECOND just means there was a finish flaw. It will be hard to tell 30 plus years down the line what exactly the flaw is.
Buy it, you will likely not regret it. Just be prepared for every other bass player to compliment you on your sound.