Thanks for the article, Mark. It and the comments above answer my original question and reveal the loyalty of the user base to FSX and to each other. Do you think the new Microsoft FS will be amiable to existing and future popular add-on's? The supreme and unstoppable demand by the market can be summarized in two words:"More Realism". Closely coupled with that is "easy to install and easy to use". A big untapped part of the potential market for flight simulators are the thousands of potential buyers/users who are afraid of the complexities of purchasing controls, calibrating them, obtaining maintenance for them when they break, balancing frame rates/realism, add-on's, and well, just look at all the threads for these various forums. Hopefully, MS is aware of these obstacles and will jump into the controllers market as well as the rest. A "plug-and-play" cockpit-software combination with annual affordable maintenance contracts that will provide remote solutions for problems and add-on's. The majority of users just want to fly and have no interest in the vehicles that provide for that nor the desire to expend their limited allotted flying time having to learn how to make it all work.