Some of the attitudes about sims in this thread are soooo different from mine...
So many seem to act as if there can be only one sim in their lives, and once the decisions been made, all others must of course be deleted and given up for dead.
That's all good and fine, and I own all (civilian) PC flightsims available today, too.
However, there's one caveat, concerning addons. If I were a billionaire, I would just buy any addons for any sim and be done. Unfortunately, I don't belong to that category. Now that's not an issue with, say, Outerra, and AFS2 doesn't force me to buy too many addons either - unfortunately. However, I recently made a clear cut for P3D and against XP. I had to, given I already spend too much money for this hobby overall.
This issue is even more serious, as neither P3D nor XP are really fun as bare sims, so you have to buy a minimum of addons (like ORBX Global or Xvision) to just judge their potential.
Kind regards, Michael