GARI'S PROFILE

Games are still released with VX, too...
Bloodstained Hands (well, just saw it's yours... I'm leaving)
Rusty Soul
Which is not so surprising considering that some people would rather continue their game (often long projects) in an engine they know well. And also, though VX is not popular (can't hide it), it's probably one of the most straight (it's got the basic features, and even a little less) and a good engine to learn scripting (so much to do...).
As for the scripting knowledge in itself, it's not useless considering it probably got you some skills in ruby (rgss is not ruby but uses it as a base, if I'm not mistaken), and you should probably be able to switch really easily from vx to xp or ace (maybe easier for the latest due to improvements?) since they all use the rgss as a base (differences would probably reside in vocabulary and some minor changes). And as said Marrend, you can probably use this knowledge for other languages too.

To be totally honest, I didn't think someone would release an ambitious game in VX nowadays. Probably we will see other finished long vx games in the next years? After all, you must not have been the only one to stick to vx for their project (guess there is a difference with the way elements are handled in vx, that ace doesn't have).