I've been on X-Plane since July, and won't be going back to FSX again. I didn't initially Nuke FSX, but it didn't take long.
I, too, held off and was very hesitant, due to having invested so much into FSX. I bought two Megascenery states, two weeks before I tried X-Plane the second time, and gave it the chance. I was a bit saddened by that, but I've now bought a few XP addons, and most of them are remarkable.
I say the chance, as Daube put it. It's got a bit of a learning curve. However, once you figure out how to arrange the scenery.ini, adding scenery is SO SIMPLE. You just drop a scenery folder in there, and it's loaded in. MisterX6 is a must, some beautiful freeware sceneries, and this is where X-Plane truly dominates. There is a large, large community that creates some beautiful free scenery.
I've included this valuable link:
https://forums.x-plane.org/index.php?/forums/topic/90776-master-list-of-libraries/
Don't be intimidated. At first, I was like HOLY HELL You gotta go through this much work to install a freeware scenery? I stuck with it, and you don't need every single library there; most sceneries will indicate in their documentation what libs or Libraries you need.
Ortho4XP, ALSO FREE, will (Again, once you've learned how to utilize it) create Photoreal scenery, with its own realistic lanclass (Yep, photo real scenery with halfway decent autogen), and its own terrain mesh which is far better than stock. I've gotten halfway decent with O4XP, and have tons of tiles, so PM me once you start and have questions. You can even adjust the Zoom/Detail level of this free photoreal scenery; it just depends on how much hard drive space you want to use up.
I'm shutting up now. I'm just excited to see another one thinking of coming over. You were and are challenged by the same issues I, and many others of us XP converts are initially faced with. Stick with it, if you're dedicated and know how to Google issues and find Youtube tutorials, you'll be not looking back in less than a week or two.