A World Series that doesn't involve the rest of the world???
Well it does include Canada!
Actually I always thought that was dumb calling it the World Series so in there I am in agreement.
If you really want to see baseball and not pay an arm and a leg and can travel outside of Boston, try a minor league game. There is one team Brockton - Brockton Rox and one in Lowell (Lowell Spinners) tickets can be had for $10 or so and there is much more entertainment and much less low-keyed than the majors. Both are probably about 20 miles from Boston.
At the very least the minor league teams have mascots running around, contests in between innings and stuff like that which keeps the crowd more entertained. Depending where you sit in Fenway, you will get much more serious fans than in minor league.
Baseball can seem slow - there is kind of a mental game going on between pitcher and batter with maybe the catcher giving some hand signals to the pitcher. Then when the ball is hit there is action in the field and with the batter running the bases. I think the basics might be easy to learn.
You should watch the movie Million Dollar Arm - it is about a man going to India to try to recruit some Indian men (in particular they are expecting to find cricket players) to learn to be a major league baseball pitcher in the US.