There are still quite a few grandfathered .edu domains out there. I also have an .edu domain registered back in '98 and also have colleague friend who registered one at same time.
To get an .edu domain after 2001, you must be an accredited academic institution offering at least 4 year degree courses.
You cannot buy a grandfathered .edu domain, this is against educause policy. But..you can sell an .edu domain as corporate asset. This means you would have to buy the corporation who holds the .edu domain..
The problem is that many schools have folded and no longer corporations or non-profit organizations but still legally obligated to have academic transcripts available for past students and why there are so many grandfathered .edu domains still in existence. They use the .edu domain for transcript information and retrieval including the contact and location of law office where the academic transcripts are stored.