Well, I'd prefer to have trains rather than buses. Trains are more efficient (once built) and ecological than buses, and they go faster and aren't affected by traffic.
where train made little sense anyway.
Why did it make little sense? It was built in a time where there was demand. Then it was removed because people did not use it as much anymore, but I doubt it was because of buses, it was mostly cars.
Yeah, the distance from the station is a good point. And I also probably have a biased view, as a "city dweller" (not sure about this word's usage).
Though quite a few small cities would benefit from having trains again. For example, Pontivy is a small city of 14,000 people, which still has a train station, but only freight trains go there. And cities of this size already have a bus network, so you don't need to walk 40 minutes. Though the time it takes to go to the train station depends on the frequency of the buses, I suppose.