Do you currently have an e-reader? There seems to be 2 camps of bibliophiles out there: those who loathe e-readers and only want to purchase real paper books, and those who swear by their e-reader. But as time goes by, those in the "real paper book" camp seem to be slowly changing their tune. Sales of e-readers and e-books have grown exponentially, and are expected to continue to do so. If you haven't jumped on the e-reader wagon yet, we've listed a few of the options below. But the real question is, why should you? For many, e-readers are more cost efficient (e-books tend to be cheaper than paper books, and go on sale more often). But e-readers can also be more convenient. Instead of packing 5 paper books for your vacation and pushing your checked bag over it's weight limit, you can slip an e-reader in your carry-on and bring thousands of titles with you. And with the newer readers, you can read comfortably in the dark without straining your eyes, making it so much easier to finish that page-turner without disrupting your partner with a bedside lamp. Our favorite e-readers are: Kindle Paperwhite - Amazon's second generation Paperwhite is a step up from the standard Kindle but is still solely an e-reader (unlike the Kindle Fire). The lighting is amazing, the pages flip quickly, and the battery lasts for weeks. It's available with wi-fi or 3G, and with or without special offers. The cheapest Paperwhite is $119 - you must connect to wi-fi to download books and you will see special offers on your screen, but these offers will not disrupt your reading experience. The most expensive is $209 and comes with Amazon's 3G service (no monthly fee) and no special offers. Nook GlowLight - Barnes and Noble's e-reader isn't quite as popular as Amazon's, though this was the first e-reader on the market with built-in lighting. The Nook is lighter than the Kindle, and has more available storage as well. The Nook is a tad slower than the Kindle though, so keep that in mind if you're a speed reader. There are no options for the GlowLight - one will set you back $119. No worrying about special offers or 3G. This is just a standard e-reader. Barnes and Noble is keeping it simple. Kobu Glo - This e-reader is the only real competition for the Kindle and Nook, as far as strictly e-readers go. The Glo is lightweight, Wi-Fi enabled, allows for expanded memory (like the Nook used to) and is compatible with EPUB files (most e-readers are not). However, the book selection is much smaller than Amazon or Barnes and Noble, and third-party purchases or loans require tethering to a PC. Not to mention the Glo is a little more costly than the other two at $129.99. However, the Glo is available in multiple colors. So if that's something you care about, Glo is the way to go Of course, there are a wide variety of tablets that support Kindle and Nook apps, as well as other e-book apps. But if you're looking for a no-nonsense e-reader, these are your best options. Which one do you prefer?