This is fascinating, I live in a region where there are patches of competitive ISP area, and as a consequence, I have never seen an ISP advertise a price outside of a targeted mailing or phone call.

I had assumed that most of the rest of the country was like this, and you only got prices after you gave an address.

Even a medium size ISP that was running a "price for life" deal, didn't even advertise with the price was, and you got better deals if you were in a competitive area. (Based on comparing mailed advertisements).

Prices appear on physical mail advertisements I get for internet service, I get quite a lot of them, but billboards, television ads, and everything else simply lacks a price and touts product quality and speed.