I don't see why people are still skeptical after phase 2. Marvel made $1.3 billion off of two obscure franchises(GOTG, and Ant-Man). Guardians is considered one of Marvel's best films and Ant-Man is better than most other Marvel films. Arguably two of Marvel's worst films are Iron Man 2 and Thor TDW, and not some obscure Marvel property they were trying to introduce for the first time.