How much does it cost to get a harmonic balancer?

Could you please elaborate on the factors that determine the cost of a harmonic balancer? Are there any specific brands or models that tend to be more expensive? Additionally, does the installation process affect the overall cost, and if so, how much does it typically add to the total? Finally, are there any potential savings opportunities or discounts available when purchasing a harmonic balancer? I'm interested in understanding the overall financial implications of this purchase.