I think Hasbro just started sending out a new wave of Rey, Luke ROTJ, Obi ROTS, and maybe a Vader or Kylo I'm not sure. Most Black Series can be purchased for around $100, and a lot of stores put them on clearance right now so they arent worth too much.
When TFA came out the removable blade Black Series were selling for $300+ I dont know if they are still worth that much though.
Hope this helps