A 250 tri culled mesh is totally insignificant in term of performance even on the worst toaster. The art concern is more valid, but that's simply a case of updating the skybox later than the mesh. There's a lot of things like that in the game, due to simply working on it over a long period of time. I probably forgot a ton of other weird stuff that would need a revamp, but for now, it's time to move on. The game is mostly done, and will get a few more updates, but I don't plan of redoing old stuff again and again.