Play Unplugged - three games for 100 dollars

The Play Unplugged site tries to find the best three boardgames for a total purchase price of $100 or less. From their announcement:
Editor-in-Chief, Enrico Nardini gave himself a budget of $100 and a mission to bring home at least three board games. The games had to represent different styles of play, facilitate differing numbers of players, represent various companies, and most importantly be incredibly fun to play.