When real money got into the game, and hip hop was made into a marketing gimmick where a lot of pioneers felt exploited by a world they didn't know before. At the same time Downtown became an attractive place to live for people with more money. Rents soared and artists and galleries disappeared.
The movie 'Beat Street' is widely acknowledged to mark the end of this era and the start of hip hop going worldwide.
Wild Style is a much more natural dramatisation of the scene at the time.