There are already at least two Entertainment Capitals of the World. It also turns out that Shanghai was called Paris of the East!. "Budapest Paris of the East" has a significantly larger amount of hits on Google compared to "Bucharest Paris of the East" (2,380,000 vs. 2,070,000). The persistent use by travels companies must have its roots somewhere as they didn't all just make it up at once. If it is well-known as "Paris of the East" (moreso compared to Bucharest) why not just leave it as it is?