I needed to build a audio corpus to train acoustic models on. It actually worked pretty good. I was able to build up about 100 hours worth. It was unbelievably tedious because I had to verify the audio even after I used amazon turk a second time to do a first verification pass.

The other thing is that I don't necessarily want perfect quality audio. I wanted whatever microphone audio normal people have so it probably worked out better that I used amazon turk.