I purchased one and am really enjoying it. For about $400 total (Kindle plus individual purchases), you can have basically all that's important in English literature. If you have a wireless connection, go with the wi-fi only. If you don't, then get the 3G version. For collections of works, I generally prefer Mobile Reference Library editions, as they usually have the best navigation and organization, which is ESSENTIAL on a Kindle. They're a tad more expensive, but it's still nothing compared to what you'd spend on buying the books individually. For instance, you get the complete works of Charles Dickens for under $5. There are usually a couple of typos in these collections (which is pretty much unavoidable when you're doing OCR on all the scans). But they are not that distracting. I wouldn't recommend it that much for theological study, especially if, like me, you like to take notes. You can take notes on the Kindle, but it's awkward. If you read anything theological on it, I'd recommend devotional only.