What do you mean by pay?
If your whole journey is on a RRB then you might get away with not paying, but I've often had it in the middle of a longer journey, where the hassle of buying separate tickets for each of the train legs and hoping not to be checked on the bus leg was not worth it for any putative savings (which might have been non-existent anyway).
It is the painfully slow timings of RRBs that put me off using them. Those setting the timetables seem divorced from any knowledge, or even application of common sense, as to how long journeys will take.
I think this is planners being very conservative and not wanting to take any risks. If you're promising to get passengers to the next station in time for the onward train connection, and you're using RRBs where the drivers may not know the route, you don't want to have any risk of problems meaning that passengers miss the onward connection.
I'd much rather use a train with a connection than a bus. I really don't like the claustrophobia of a bus; they're usually much darker inside and you have less personal space. I am quite envious of the people who happily get a megabus to travel the country; I appreciate the cost benefit but the envy relates to their resilience!
I don't have a problem with travelling by bus or coach
per se, the biggest issue for me is usually the extended journey time, along with the concern that if there is more of a risk of the journey going wrong. Plus a journey that is
supposed to be by bus or coach is usually designed to be so, whereas RRBs sometimes have to take routes that you would never plan for buses, especially if they need to call at intermediate stations.
This is certainly a bit of an issue, but there have been murmurings (though I forget where) about whether just putting "rail replacement choo choo" or nothing on the front blind is considered compliant with the road vehicle accessibility regulations (forget what they're called) or not - and these regulations do apply to rail replacement, hence the requirement for all vehicles to be accessible the same as for a public local bus or coach service. I've certainly noticed that increasingly correct destinations are actually displayed so I suspect things are being said and done about it.
If there are marshals on hand to direct passengers to the right bus then it's a complete non-issue.
I suspect that operators may shy away from just putting the destination on the front, as then people waiting for a bus at other bus stops along the way might get confused/annoyed that they can't flag the bus down.
According to RTT, the HT services over the weekend
were stopping at Doncaster ... and Kettering as well, apparently. As they have to run through Doncaster and it's usually a busy stop for them in its own right, as well as being a useful interchange point for passengers coming from further north, it would be a bit perverse
not to stop there and to take up valuable MML paths for the smaller number of passengers coming just from Hull, Brough, Howden and Selby.