Even if I don't start playing MtG, I have to say the lands are pretty. I might start collecting the prettiest ones. Too bad the dual-lands and other special ones are fucking expensive apparently.
Also if you want non-spendy dual lands that can still be pretty, look for guildgates, the zendikar lands that gain 1 you life when they come into play, bouncelands from old Ravnica, and probly a few others that I cant remember at the moment.