If i chose to come back and play at some point in the future, will i need all expansion discs and their key codes?
If i chose to come back and play at some point in the future, will i need all expansion discs and their key codes?
nope you can download it from battle.net through your account
Not at all. if you account have all the expansions, I believe (not sure) you can DL it from scratch. Worst case you can just buy the original World of Warcraft Game and the background downloader will start dowbnloading every expansion.
3 manning all Challenge Modes on GOLD! - Youtube.com/MyCelar
just download from battle.net on ur account page