A low estimate of tabletop releases in any recent year is around five hundred titles. Try to imagine containing that many games in one place, then only being able to pick one, a single game to be forever remembered.
In a hobby where cataloguing and archiving is so highly regarded (here I will remind you that BoardGameGeek is older than Wikipedia, showing that the geeks of the millennium knew which to prioritise when it came to creating digital records) there is a fascination with the superlative. It’s not good enough to be simply ‘good,’ we need to remember the best, the biggest, the most successful.