You have to be rich to afford $20? :megalol:
Let's see...for $20 I can take my wife to the movies. If I chip in another $15 or so I can get drinks, some popcorn, maybe some M&Ms. That is a one time event for the value.
With BS2, I get endless hours of fun plus the ability to go online and fly with people all over the world. On top of that I get to use my creativity with the mission editor which gives me yet more hours of fun. All for just $20.
Time for you to get another hobby. Perhaps checkers might agree with you. That is pretty cheap.