Regardless of the health effects, addiction (and related expenses) can cost you hundreds, or even thousands of dollars. People go to counseling, join support groups, and buy nicotine patches to try and quit.
I say “try” because on average, former cigarette smokers had to try to quit several times before they were successful. Many former smokers say that quitting was extremely hard, maybe even the hardest thing they’ve done. I don’t know for sure, but I suspect the same is true with vaping.
I don’t like nicotine because it’s used to manipulate and take advantage of people. The product/delivery method is irrelevant.