Yes, definitely some fans of those frames here - and they still sell well, compared to other aluminum frames of the time. The stiffness luker mentioned above does make the ride somewhat jittery, but they have great acceleration and are great climbers. I think the aluminum forks are what really made them harsh on long rides, something a carbon upgrade would help.

To, me, however, the thing that does make your bike collectible is the GPX group. True, it was 3rd from the top, but you don't see it very often. This was at the time when Suntour was losing big to Shimano indexed systems, so I'm guessing not many manufacturers chose it for their builds.

http://equusbicycle.com/bike/suntour/suntourscans.html