I used to work in a call center doing tech support for a dial-up ISP. The 10 hour plan was $9.99 and then there were various tiers including an unlimited plan for $50 or something like that.
I ended up moving to a different city and called up the call center to set up internet and I asked for the 10 hour plan. The guy (who didn’t know I used to work there) tried to talk me into a bigger plan, but I stuck with the 10 hour plan.
Why? Because the company had no system for monitoring usage. You could use as much data as you wanted and it was all the same to them. There was no tracking system in place.