I'd say in more than 90% of the games, basketball comes down to the final 5 minutes. It isn't a rare occurrence. In most other sports this isn't true. You might see an onside kick to try and get a ball back or a last minute comeback attempt in one of your 13-14 games a year if you follow your team. But in the majority of football games, you know who's going to win within the last 5 minutes most of the time. Only typically in the most competitive games does it match the back and forth that you get in a basketball game throughout most of the game.
I just don't like that about basketball. I can't get excited for scores in the first half, they really don't matter. I get excited if I'm watching a game, in the last 5 minutes and there's some big scores then. That makes it exciting. But it's really only in the back half of the game.