Well if I would theoretically switch to another simulator, I would need to buy new hardware. My actual system for FSX was build for that. And it runs very well in DX10 with Steve's fixer. Just to make a new sim for having nicer graphics and maybe better features like runways which are not even at altitude (of course there is more), that is not enough for me. I like FSX, because I did a lot of work with it and it was also very time consuming. Starting over with another sim, nah. RIght now, I say no thank you. I think, it will still take a very long time for me to update, if I ever do that.
Look here in the forum what is happening with new addons which are connected with older systems. It is unbelievable that these new buggy addons will ruin older good running systems, just because of an "AddonManager" with some Couatl Script Engine which fails to work. It looks to me the first priority is MSFS than P3D and maybe FSX in the end. That's just horrible to see. An update like that must be splitted into each system. Before you do that, there must be a point of return if something goes wrong! I can remember some time ago, I forgot how long ago, but it happened before. Not that bad as it is now, but I had to reinstall and reactive the FSDT software again. You can't do that right now. For me it's not possible. I am really angry about that. I am fed up right now with these developers acting like this.