[ohashi]

Maybe 200 is too small a sample size, but you can glean and predict stuff with that sort of data. My master's thesis was about predicting box office sales based off twitter data. (coincidentally these guys published a couple months before me: http://www.fastcompany.com/1604125/twitter-predicts-box-offi...) but we had incredibly similar results. It is pretty interesting to see what you can do with that data.

If it makes you feel any better, you can build it yourself, I certainly did. I didn't even use any libraries like NLTK to build my sentiment analysis. Read some research papers and built it from scratch (code wise at least, the ideas used were fairly common). It's a fun challenge. I still work with that code every day and use it in my startup now :)