After New Line Cinema ensured they would be solvent for some time with A Nightmare on Elm Street 2: Freddy's Revenge, they did actually take the time to make the third installment more than just a simple cash grab. For one thing, they spent a couple years working on it, and more importantly (blog post) got Wes Craven back on as writer and (blog post) producer. The result? Something that cranked (blog post) the concept up to 11.
Source: A Nightmare on Elm Street 3 Dream Warriors Movie Review - Decker Shado