Vortex were the first PBT doubleshots, IIRC. Shame about the legends though. There are a few other cheap(er) PBT doubleshot sets available now, including some from Tai Hao, which are surprisingly good. Can you believe the first Tai Hao group by (albeit for ABS doubleshots) was $9.50 a set! It eventually went up to $12 a set as we needed a more conventional space bar than their original set provided, plus one or two other keys for ANSI compatibility.
The Noppoo served you well - it gave you experience of a different switch, that you discovered is not your favourite, and allowed you to introduce someone else to the joy of mechanical keyboards! I've gotten one other guy at work hooked on mechanical keyboard, but he's borrowing one of my Ducky Shines atm.