Wasn't that symptomatic of a nationalised rail system that the domestic producers could get away with supplying something that wasn't that great in the knowledge that the customer could not go elsewhere
The Pacer was a reasonable choose
at the time, as they were only intended as a short-term solution to a shortage of rolling stock. It was intended that they would have been replaced by existing much better DMUs cascaded from newly electrified lines a long time ago!
At the time the other option would have been to close a lot of the rural branch lines that had few passengers, hence making everyone use buses. Since then more people have started to commute by rail. (Remember that as that time most buses had the same seats as the Pacers.)
Just looking at Rose Hill, the passenger numbers have nearly double over the last 10 years.
Therefore new trains or trams are needed as quickly as possible.