[editor's note, by Mr Van P] Tiki, I hope you don't mind, but this is excellent Techs-Mechs (hmmmnn..Tex-Mex..).
I'm posting this in an effort to keep people selling old GT bikes on Ebay honest. I keep seeing GT road bikes (and cross bikes) with the triple triangle design selling on Ebay and listed as 2003 or even 2004. This is just a lie. Here's why:
GT was an American bike company that made its frames in the USA until 2001. You can spot these road bikes easily. They have the "triple triangle" design. The seat stays are welded to both the seat-tube and the top-tube (in other words, the seat stays go past the seat-tube and end about three inches forward of the seat-tube where they attach to the top-tube). Racers wanted stiffness, and this design was stiff (although it was originally made for GT's mountain bikes because it is also strong). The aluminum was very good, and the manufacturing process was excellent. GT sponsored the Pro Tour team Lotto (now Davitamon-Lotto) in 2001, until GT's unexpected and unfortunate bankruptcy.
When it went bankrupt in 2001, two things happened. Dealers didn't know what to do with minor warranty issues. If you returned a bike to a dealer for some minor issue, they stuck it in their basements. Also, some dealers had existing stock that they never sold, but mothballed instead. These bikes have been trickling onto Ebay for years. Never-ridden GT road bikes w/triple triangle are probably great bikes, but they were last manufactured in 2001. Anybody listing them as being built later than that is lying.
The second thing that happened to GT is that the name was sold to an importer of Chinese-made frames. New GTs have nothing to do with the old company. The logo now appears -- like other old logos like Motobecane -- on non-triple triangle frames made in China. There's nothing wrong with these frames; but they are a different company from the old ones.
Finally, the 2001 road bike and cross bike models had a unique design flaw. The integral seatpost clamp was constructed to only be loosened on one side (even though there's an allen bolt hole on both the nut and the screw). Try to loosen the nut instead of the bolt, and you crack the seatpost clamp. If you see somebody selling an old GT frame, check the seatpost clamp bolt before you buy. A cracked clamp still works, but not quite as well.
Hopefully, somebody thinking about buying an old GT will surf the web and find this posting.