[Katsunami]

With regard to the cost of the e-reader, it gets less as you read more.

Let's say, you buy a new e-reader every two years, each time skipping one generation. The e-reader is a high end model, costing €129, and you read 50 books in one year. After two years, you'll have read 100 books.

These 100 books are made up of bought books, ranging from €2 up to €7, and some freebies and classics from MobileRead, that cost €0. Let's say, the average price that you pay for a book (including the free books costing €0) will be around €3 per book.

As you will replace your reader after reader 100 books, the device will cost you €1.29 per book, taking the average price per book up to €4.29. If you read only free books, the average price per book would have been €1.29.

Only you can decide if the average price per book is worth it to be reading on an e-reader instead of paper. For me, it is, because of the advantages e-readers offer such as being smaller, lighter, more portable, take up less space, have inbuilt light, changeable fonts and font sizes, can edit layout as I like it to be.

Of course, if you sell your reader for €50 after buying a new one, you effectively paid €79 instead of €129 on top of the price of those 100 books. Therefore you'd need to add €0.79 to each book instead of €1.29.