Many thanks to SWLing Post contributor, Ken Hansen (N2VIP), who notes:
Ham Radio Outlet has the SDRplay RSP2pro in-stock for $192.95.
As a reminder, the SDRplay RSP2pro is the version enclosed in a full-metal case for maximum RF shielding. Like the SDRplay RSP2 it has three software selectable antenna connections (long wire and two SMA), whereas the original SDRplay RSP1 has just the one SMA connector.