Paid WiFi in Establishments

I have a particular gripe about businesses that charge for the wifi in their establishment.  To me, it seems like idiocy to pay up to $15 a month for wifi access at a business.  Evidently there are alot of people out there that do it because it seems to be popular.  Wifi should be a perk to visiting your establishment, not another product.  I guess until people grow a brain and stop paying, no one will wise-up.