Short answer is no. V5 is marginally better than v4. But since P3D at it's core still is based largely off of FSX's base framework, the scenery is still non-comparable to the likes of the Ai assisted building of MSFS and such. However, if you've spent a decent amount of money into photoreal sceneries, sky, weather addons, there really is no need to move from v4 to v5. I am in this category myself. I have spent a considerable amount of money and time into making my v4 sim look pretty good and therefore, didn't need to move to v5 as there wasn't that vast of a difference between the two with all the addons I had amassed for V4. I suggest to those going from FSX into P3D to just start with v5. But if you have a moderately built up v4 already, in my opinion, there is no real reason to move to v5. The only exception I'd think is if you were developing things specifically for v5. Other than that, I don't think it's worth purchasing another license to move over to v5. And to add to this, I do use Orbx, but the vast majority of my land and sky/weather enhancements to my sim are freeware.