The takeaway here is probably that the fix isn't just "never discount", but it's to screen for the kind of customer who treats a good deal as an invitation to strengthen the relationship.
This is really the key. The "deal" has to have something for both parties. The vendor gets some kind of lock-in, prepayment, guarantee of future business, whatever it is, and in exchange the purchaser gets a discount.
The discount doesn't just come out of nowhere.
That was indeed the point, guess I conveyed it in a poor way.
It is possible to switch to a smaller VNO with better customer policies. But then your cellular data gets dropped during heavy network congestion, which is probably worse for most of us.
It's literally just not worth it. Time is the most finite resource that we all have.
My boss said that the ones who have negotiated the best deals are the ones that are late paying, complain about just about every bill and will write angry letters when my boss index adjust pricing.
He said it taught him to never offer a really good deal for a regular customer (ie where the upside isn't very obvious).