Till they make new content I'll keep my pyrosoul! Price will drop by the time they add stuff to do <3
Weak excuse to stay gimp!
Really, though, they aren't *that* rare. I've been averaging 2-3 per stack of 99 -ites. HQ rate from synergy is also pretty high if you have the patience to match each element perfectly. So even at an inflated 100K/-ite, you're only looking at 20M/ring.
If they are expensive, it'll be because it's a pain in the *** to gather, synth 100+ -ites then deal with synergy BS. Pretty much why vulcan's pearl stayed expensive even when geodes were only 20-30K/e.