[Zephyrial]

Many good points made here; the one thing I think everyone missed is how exhilarating and SCARY MineCraft can be. If you have been spelunking in a labyrinthine cave system for (in-game) days and racked up a huge bag of loot, every monster around the corner (or over your shoulder) is alarming in a very real way. Getting killed doesn't just mean a manufactured in-game penalty ("go back to last save point") it means the possibility of literally losing everything you've just been working for and discovering.