Hey everyone!
I'm happy to share my expertise in board games. I'll say a few things first about board games.
One, condition is everything. If you have one torn corner, one gouge in the box, a little tape damage, all of that detracts from the the value of the game. A mint or sealed copy of a game from the 60s to 80s can be worth quite a bit of money, but even a small amount of damage in the same time period can cut the value of that item by half.
Two, kids board games are less valuable than what I call 'hobby' board games, which are games that typically run in the 50-200 dollar range. A game like Fireball Island or World of Warcraft: The Board Game (not to be confused with the Adventure game, it's different and less valuable) can get you $100 or more (depending on condition), but kids games like Scrabble Jr. or Chutes and Ladders, regardless of the age, will not net very much money ($10-20).
I'm happy to answer any questions about board games. I already share my knowledge on a YouTube show.

Staci