PC req 9 purple crystaline sword +14% stance

What could i get for it?

I had the same sword, with the same requirements and modifier. I got a PC on 100k + 20-30 ecto's, but after a week or so of bumping my thread, I managed to sell it for 100k + 18 ectos.

Maybe I was not patient enough haha.

100k+15-30ecto, shoot for 20-30 though

agree with piz... I recently sold a req 10 for 100k 25 ectos

Agree with Piz, If you aim for more, you should get around 100K+20e mark...
GL

are the prices dropping, or are there more crystalines on the market these days?

prices aren't necessarily dropping, but yes there are much more crystallines in the market now
100k+20ecto would be 260k which i don't find terribly bad for a purple 14stance crystalline