Condor2 is the goto version right now.
The racing aspect certainly makes it more exciting and it's much more than just a simple simulator. Good decisions and strategy pay off and the conditions are often quite challenging. Flying with a group and chatting via Teamspeak (USNS) or Discord (TeamXC.us) adds another dimension and helps everyone to compare notes and refine their gameplan.
IR Head tracking is great with a big screen, but the buzz about VR is legit. I'm using an Oculus Rift S on a Cyperpower gaming computer with a high-end graphics card. The difference is immersion and it really makes the experience more realistic. It changed my entire Condor2 experience and I'd hate to go back to a monitor.
As for the value of Condor2, I've found all of the lessons I've learned virtually translated perfectly to the real world last season when I got my first shot at ridge flying and thermals to 15,000ft with the Utah Soaring Association. (With Bret Hess - the mastermind behind TeamXC.us).
Paul A.
Jupiter, FL