From the SAAC Forum. A quote from Lynn Park about the possible future sale of CSX2521:
"Well, since 2568 sold for $500,000 and 2281 sold for $478,000, I think this car will be somewhere in that $500,000 area. I'll know more in a few weeks."
http://saacforum.com/index.php?topic=7209.0
Thus, I would echo Kris Kincaid's comment(s) from above.