Dr. Graham's fine book, Remembering Revell Model Kits, gives the basic data about the kit. It was originally released in 1963, with the kit number H-393, and remained in the Revell catalog through 1967. He doesn't list it as having ever been reissued. The book's coverage, however, stops in 1979. On p. 111 is a nice color reproduction of a painting of the Great Eastern, with the caption: "The Great Eastern first appeared in 1963 with John Steel box art. This is [Jack] Leynnwood's rendition for the 1980 reissue."
Therein lies a hint at one of my very few criticisms of the book. It really needs to be updated. (Caveat: my copy is of the "Revised and expanded second edition," published in 2004. There's been a third edition; but the publisher's website says it still covers the fifties through the seventies. I think the big revisions are in the collector's price list.) Revell issued its first scale model kit, the old battleship Missouri, in 1953 (and still periodically puts it in a shiny new box and calls it a "new" product). So the company has been making scale model kits for 57 years - and the book only covers 27 of them.
The book also concentrates exclusively on the American side of the company. (That's certainly an understandable decision on Dr. Graham's part; if he'd included the British, German, Latin American, and other firms that have used the Revell name over the years the book would have been three or four times as big.) Revell Germany has released a number of ship kits of its own, which aren't listed in the book. The Great Eastern, however, started out as an American kit.
I'm pretty sure it was also reissued for a while in an Entex box. Other Olde Phogies will remember Entex as a Japanese firm that specialized primarily in marketing East Asian kits in the U.S. and Britain (and, I imagine, elsewhere). Once in a while, though, American kits turned up in Entex boxes.
The price guide in Dr. Graham's 2004 edition estimates the Great Eastern as being worth $90-$110.
I built the Revell Great Eastern a couple of times when I was (much) younger. I have to say I have mixed emotions about it. Given its tiny scale (and the huge size of the actual ship), it probably was about as well-detailed and accurate as could reasonably be expected. And there's no denying the ship's historical importance. (A few years back I read a fascinating book called A Thread Across the Ocean: The Heroic Story of the Transatlantic Cable, by John Steele Gordon. Highly recommended.) But there's just no getting around the fact that, aesthetically, she was one of the ugliest ships ever built. And to do her justice really requires a big model. A member of our model club built one a couple of years back; as I remember, it was about five feet long. That was big enough to give an impression of the sheer bulk of the real ship.
I'd be happy if all the Revell sailing (and sail/steam) ships, including this one, from the Goode Olde Dayes would come back. In all honesty, though, this one wouldn't be at the top of my personal list. (That position would have to go to the Flying Cloud. At the present time, unless I'm much mistaken, the only American clipper ship on the market in plastic kit form is the ancient Lindberg/Marx Sea Witch.) Other old Revell ones I'd like to see reissued include the Mayflower, the yacht America, and, of course, the 1/96 Cutty Sark - a classic that should never be allowed to disappear from the market. Almost all of the other Revell "golden oldies," fortunately, are currently available - from either Revell Monogram, Revell Germany, or Heller.