I know some of you ask, why buy when a lot of times they're free on here?
I don't know about you, but I never get that good of quality from my color printer, and the ink is crazy expensive. Then the yellow always runs out first, so you're stuck with a messy refill or an expensive new cartridge. Also, the paper is heavier and nicer in these books.
Try it first. If you love it, buy it to have a nice copy and to support the site.