Because I played and beat the first Monkey Island game (which this is a remastered version of) through to the end about 15 years ago.
Next I will play the 2nd one (might have to boot up into DOS or use a DOS emulator
), then Curse of Monkey Island which I have on CD, the 4th (Escape from Monkey Island) one and finally the Tales of Monkey Island of which I think 2 have been released so far.