All - I have only purchased two items extra for this game. One is DC designs F-14 and DID NOT purchase from marketplace. I purchased from Just Flight. I purchased the IFR Training from Simmarket as well as the Big Manual on MSFS, since revised and re-released for additional money. Like I keep saying, this is a money train for MS/Asobo. As for F-14. IT IS the MOST STABLE PLANE IN THIS SIM. Yes, the sim might cause issues, but the plane fly’s perfect, watch low speed manuevers, and the A model will compressor stall, yes that is built into plane. I am trying to learn all their is on Autopilot system and then will test it flying Low/High Level/Star ILS approaches in many locations to make sure I got it. It’s really the most fun to fly, you can do all sorts of things on ground, lower ladder to board, open cockpit and close it. Remove chocks, covers, and get a puffer to start you up. Check list is better in revised model. Manual on plane available without purchase, go to JustFlight, find F-14 and look down in comments, manual there.