This is part of the rail travel problem.
Several choices, with many restrictions.
How is the 'average 'passenger supposed to deal with this without ticket office assistance?
Rhetorical question, I know. But perhaps the answer is "they aren't". People are supposed to find a choice that fits them, not necessary the cheapest but something that will cover their needs. Just as there is no call on the supermarkets to ensure that you know about and can buy the cheapest product, so there is no right to ensure you are offered the cheapest ticket combination.
Hmmmmm..........in a supermarket all the options are generally on display with their respective prices.......
Yes ... but it's really much more complex.
* It is not obvious in a supermarket when it would be cheaper to buy multiple products and make up your own - packet of sausages and some potatoes v ready bangers and mash meal. Split ticket comparison?
* On things kept behind the counter - e.g. pharmacy - I'm not sure if you ask whether you'll be given the lowest cost generic product or the named brand, especially if you ask by the commonly known name
* Have you tried online ordering from Dominos? The range of deals and specials seems almost designed to confuse. At least their checkout software applies a deal if it can.
Big issue is really the complexity of fares ... I would still do the North East with
GWR▸ / Hull Trains advanced to Retford, and then a North East Rover is travelling round from a York base (and on past form I would stay in the much cheaper Darlington and have the pleasure of some high speed trains, even if no longer High Speed Trains!)
On pricing, the models are all so different that we're really comparing chalk and oranges - or whatever the saying is!