Hi H.,
As a mom, I know how excited we can get when the kids want to try new things. After going through this with my boys years ago, the one lesson I learned was to allow them to "experience" with minimal cost. Check into the golf lessons at a few of the clubs in the area. Many offer the lessons with their equipment. After he completes the first round of lessons, if he still seems interested, go to "play it again sports" and by used child sized clubs. They will be much cheaper, and if he then loses interest, you can take them back to the store, they will buy them back, or trade for his newest "interest"! We did this with our boys through, T-ball, tennis, etc., until they finally decided upon wresting and football! It is a great money saver!