in my opinion i say yes
You buy it on ebay...
Most game stop stores have them, or any used game store should carry them
yes
depends. if you have played starcraft and like it you should try out starcraft 2. if you prefer the halo series and understand it you should get halo wars
Well, halo 2 is a xbox oringanils but is not avalible for download. but still you can play halo 2 on your xbox 360 if you buy it at a store, or order it online.
Pre-order halo 4 because its much cheaper.
Buy it from a PC games retailer
Buy the game.
They are both good, but halo 1 for PC has great maps and you can make custom ones, but halo 2 has that feature too. i would recommend halo 2
yes.
Game stop or gamers annonimis
Yes. but it is hard to come buy you can also get it online but if you do find it dont get surpriced only halo CE and halo 2 is on the pc