So in general you can get a good idea of the performance just by looking at reviews for the S3 Virge DX. While it was one of the most notoriously slow cards of the era for 3D, it was a solid 2D card. Additionally there was a vast build quality gap across the various vendors, where some were running at basically half the clock rate of the fastest boards (or well, least slow) with horrible, noisy output.
If you're just interested in reviews, a member here puts together some very nice reviews of 3D cards from this era. This would probably be enough to paint a clear picture for you.
https://www.vintage3d.org/virgedx.php
One specific question I can answer is that there essentially is no rare, valuable Virge card out there. They were affordable, sold by the truckload, and plenty are still out there and available for retro builds. I think it would be a bit of a waste chasing down any one specific model if you wanted to experience it again and I'd highly recommend just looking for a a good price on any well made, decently clocked Virge.