Though all of the above quit before 1990 (US). Anyone who still smokes today, knows it is bad and costs money: they don't care.
Now that I think about it most who quit because it was expensive were probably influenced by the unhealthy part, but it was the cost that finally tipped them over.
I'm confident smokers' opinions didn't reach quitting-stage due to ads.
> Results: On average, smokers were exposed to more than 200 antismoking ads during the 2-year period, as estimated by televised gross ratings points (GRPs). The odds of having quit at follow-up increased by 11% with each 10 additional potential ad exposures (per 1000 points, odds ratio [OR] = 1.11; 95% confidence interval [CI] = 1.00, 1.23; P < .05). Greater exposure to ads that contained highly emotional elements or personal stories drove this effect (OR = 1.14; 95% CI 1.02, 1.29; P < .05)
Asking because about everyone ex-smoker I know (a LOT) quit after struggling to afford the things.
Honestly, I can't come up with anyone who could be so powerfully swayed by ads that they could quit an addiction.
The bans are a huge inconvenience to smokers. That's the point, but it would have been political suicide a few decades prior.