A personal observation.
Maybe you too are someone like me who finds the following ...
I am a fussy, pedantic person who likes things to be as near as possible to the real thing or as close to real as they can be. I like the logos on AI planes to look right, I want my skies filled with the correct airlines or GA planes, and I want my airports to at least resemble their real-world counterparts.
One of great things about FSX is that I can add, edit, modify and change things.
I have an AI traffic program that lets me add and edit flight plans for AI traffic, I have a repaint tool which lets me add new liveries and edit existing ones, and I have an airport editor that allows me to make changes to airports.
However, whilst the ability to edit almost everything in FSX is one of its best assets, I find it to also be one of its worst.
I constantly find myself spotting something minor in FSX that I am not necessarily happy with and, having all the right tools readily at my disposal to "fix" it, I soon find myself NOT FLYING. Instead, I'm diving in to the appropriate editor and making the required change. It can be something as simple as an airport taxiway sign arrow that's not quite right, an aircraft logo which isn't quite centered on the tail, or an AI aircraft landing at an airport that it wouldn't normally fly in to in real life. Grrrr. Once I spot one of these little "issues", off I go, closing the sim, opening the editors, at it again, fixing and changing, and NOT FLYING.
This does annoy and frustrate me. I'd rather be flying. It's my own bad habit though ... spotting something which I think isn't quite right, and then spending the next half-day fixing it ... NOT FLYING ... But, yes, I really do only have myself to blame. Or, hmmm, is FSX part to blame as well?
FSX is open enough to allow me, the user, to make edits and change things. That's really cool. It's definately one of FSX's best assets. But for fussy, pedantic me, this great asset can also be one of FSX's worst.