There really isn't any comparison between FSX (a 2007 simulator) and MSFS 2020. Yes, P3D was, after a few years of development, became better.....just moving up to a 64 bit platform was the improvement most needed, but still P3D lacked the crisp scenery available with current technology. Hardware always is ahead of software, but today's hardware is so far advanced over what was available 10 years ago, and you have so many new choices, there just isn't any reason not to move up. Except maybe cost. With the most advanced video cards north of $1600 High end gaming computers are expensive.......BUT, I have helped several members get going with something less that the highest of the highest end computers. You may not be able to run at the highest settings but your experience will be 100x what you are seeing now and the price can be quite reasonable. With new processors and new video cards, the used market can be quite attractive.....if that's not your style, the latest and greatest stuff is available and it's great. But I think most would agree, that P3D is way behind MSFS.....But even that said, I could make a case for P3D if you are in the aviation business,....if you fly IFR most of the time and you like jets. P3D is more mature, far most high end airplanes , and a certain familiarity. As a personal side note, I deleted all my P3D stuff.....hundreds of paid scenery and airplanes....gone....now I have a lot more disk space and a better experience.