Yes it is
you just have to sign up on the minecraft website.
go to notch website or jeb website...download the 1.7.3 or a newer one and in app data > roaming > .minecraft > bin > delete minecraft and replace with your downloaded one then rename it from minecraft (1) to just minecraft
you just go to the Minecraft website and download minecraft again if 1.3.1 was your latest version. or you can download minecraft version changer.
You can play minecraft on Mac it is coming out for it, just look on the official website.
No, Minecraft is far from the worst video game. Although, that is just my opinion. If you want statistics there are some on the official Minecraft website; Minecraft.net.
Yes it is, the one you buy on the website is always the most updated one, the newest version. When the next update comes out you don't have to buy it again though, it will just update your minecraft files located at %appdata%
Minecraft accounts are free. Just go to the official Minecraft website. If you want a free version of the game, you could use Mineshafter Hey, I've just received a free Minecraft Giftcode! You can get one too! >> minecraftcodes.me <<
Yea, it's just you..
You have to download it on the minecraft offical website. It is "minecraft.net". Or just type it on the google and the link will come out. It is safe to buy and download it in the minecraft site. Also you can download it when you have a account and bought it.
There is no safest website. You can never tell when there's a virus, even with antiviruses sometimes.
No, you don't need a disc for the computer. You just need to download it from the website.
If you already have 1.6.1 you just click yes to the new update and it will download the update. If you don't have it already just go to the Minecraft website and down load the launcher and it will update that way.