Thats a solid foundation for any website. Unique quality content and your golden. I havent bought much content but just trying to find somebody who can write proper grammar and interesting content is difficult. For a 500 word article it cost me $30. For me to get a site w 400 articles is $1200.00. Ouch!
Questions to ask:
-Is my keyword(s) good enough to get me a return?
-what do i have more of time or money? Spend them efficiently. Dont sacrifice sleep for more time. Just become more efficient.
People will most likely follow this thread and model a technique similar to what you are doing. They should concentrate on quality content.
This is a blackhat place so scraping spinning cloaking is the norm but with quality content can bring long term set and forget earnings.