Balancing of drive shafts

[Rudolphphype]

"Hi everyone! I've been thinking about balancing my drive shaft on my car. I found this article , and it got me questioning, should I bother?

Balancing is pretty expensive. Maybe it's better to leave it as is, and just change the shaft occasionally. Or is the vibration really that harmful that it's a smart investment?"
Article : Drive shaft vibration elimination