Hi guys, just found a link to get Rokinon's newest K-mount wide/ultrafast lens for $170 off list price. Regularly $599, this has it listed for $429. And you know Adorama is a solid, reputable dealer.
Rokinon 20mm f/1.8 ED AS UMC Wide Angle Lens for Pentax K Mount RK20M-P
By the time I found it it was already on backorder, but I ordered one and got price confirmation via email. This is by FAR the lowest price I've ever seen on them. Time to populate the PF lens database with some reviews of this thing finally.
Happy hunting! I'm really excited to match this up with the rest of their ultrawide/ultrafast options.