Asobo is releasing updates that bring more detail and better accuracy in blocks. We had the Japan update, the USA update, and upcoming next is UK. I’m anxious for the Caribbean update. On launch for example Washington DC had a black rectangle for the Washington monument and some cheesy buildings in place of the famous landmarks. Being the platform is open to developers some get the jump and improve certain areas or airports. If you want to pay then go for it. Otherwise wait till Asobo gets around to releasing an improved update for an area. We are talking about a whole planet here.
I only bought a single 3rd party add-on, the Saint Martin Princess Juliana airport and surrounding area. There and Waikiki are my top two home away from homes so it was well worth the small price. Wish one was available for Waikiki as the buildings aren’t accurate at all.