Minecraft is one of the most "passive" games out there, it does nothing to "grant" you fun by handhelding, cutscenes, tutorials, achievements and blah.
The matter with it is that lots of people are tired sick (me included) to be hand hold in every game and just want to go around and experiment and see what happens, and Minecraft works really well for them.
This really hits the nail on the head.
When I started playing Minecraft, I expected to hate it. I was just playing out of curiosity since I'd heard so many people I know talk about it. I first tried playing without consulting its wiki, and couldn't get very far - it's a game that requires the use of resources outside the game to enjoy properly. This page
is absolutely required viewing to get started with it. Once I read through that a bit and saw how to craft some things, I started experimenting with them, and it turned out to be fascinating - the game completely won me over after I spent a bit of time with it.
There are also quite a lot of different ways to play Minecraft. If you want it to feel more like a traditional game, you might like Vechs's Super Hostile custom maps
. They remove the randomly generated world and give you a structured game level, with goals and challenges along the way. If you want to tinker with complex machines, you could try one of the mod packs from the Feed the Beast launcher
. You can also do PvP, electrical engineering (redstone), farming, exploration, creative building... There's a huge amount of variety, but it does take some effort to discover and appreciate.