>Unless someone else makes an equivalent product and sell it for $14/year, and every user switches to the new product, this statement is moot. A product justifies its price tag as long as people are willing to buy it at that price.

adguard is free and I don't think I've encountered an ad that it didn't block. There's also open source adblockers like ublock origin lite, and some other one that was mentioned earlier this year but I forgot the name of.