I just looked at the sticker on my GT "Triple triangle" mountain bike sitting in the corner of my office (I rode it to work this morning). "Made in Taiwan". The welds on the aluminum frame are beautiful. The bike is rugged and still handles my 16 mile round trip commute quite nicely after 8 years of making the trip two or three times a week. Quality is where you find it; though, frankly, I'd still be riding my Haro Impluse (ca 1990) if it hadn't been stolen.
I have a GT too, awesome bike. I can't describe how disappointed I was when I found out they'd sold out to the company that makes all the 'Walmart bikes'.