If costs can't be controlled perhaps we should forget about any reopenings. But there might be (Blyth and Ashington is the obvious example) better cases than Ollerton - Ollerton is a good example of a rural backwater (smaller than Tavistock in fact) which supports only a very limited bus service. That's not to say it shouldn't have a train service, but there are limits to how much can be spent on it
The big two advantages of Ollerton are that there's track there and there's a service that can be extended there fairly easily (rather than, say, somewhere like Grangemouth which is larger but there's no obvious way of serving without disrupting other services/passengers).
Yet all the recent reopenings, in England, Scotland and Wales, have produced passenger numbers in excess of those forecast, in some cases greatly in excess
It's worth considering what the forecast passenger numbers were though.
My understanding is that Ebbw Vale was built on the basis of a service to Newport - but in the end got a service to the bigger city of Cardiff (and came at a time when the steel works were closing, so the need to travel outside of Ebbw Vale to seek employment suddenly increased significantly). So comparing final passenger numbers to predicted ones isn't wholly fair.
The Alloa branch was re-opened to get freight off the Forth Bridge - sticking a platform for a passenger service was the simple cost of running freight trains through the town.
Similarly, a line to Tweedbank was the price paid to get the LibDems into coalition at Holyrood.
So in both the Scottish cases, the passenger service was going to happen regardless - these branches weren't built because of an amazing business case, they were built to suit political demands - hence nobody doing a huge amount of work to assess demand - they weren't built
because they had amazing demand - the fact that the passenger numbers are higher than expected is great but the two lines could still be running significant financial losses even if passenger numbers were double projections. There's probably a few Scottish schemes with better business cases and better projected passenger numbers that never saw the light of day. And some Scottish schemes that were built that never get discussed in these debates (e.g. anyone boasting about Larkhall?).
Take those three away and what have you got though? Some fairly underwhelming re-openings, some doing a bit better than expected, some doing a bit worse, but certainly nothing to justify the faith that some here have.
An outcome which would suit all Beeching era nostalgists.
I think the word is "realists".
The Robin Hood line has been a success. Would anyone dare close it now ?
As
@HSTEd pointed out above, there are lots of basket case stations/lines but nobody dares even close something like Breich - the fact that nobody in any position of power is suggesting closing lines where the average passenger load could be accommodated by a minibus (e.g. Burnley - Colne) doesn't mean that they are a "success", just that no politician is going to ask for something that'd be unpopular with the public (even though 99.9% of the public don't use it).
Instead of moaning that some people argue for unrealistic reopenings, why not argue for a policy that sets aside funding for the best reopenings and evaluates which ones they are.
Firstly because we already waste huge sums on evaluations (the "Aberystwyth to Carmarthen feasibility study" industry is one of Wales's major employers!)
Secondly because you are clearly asking for something which is guaranteed to give the answer "re-open some long abandoned railway" - by all means assess which railway project has the best business case but by demanding we have a separate pot just for re-openings and that we must only spend that money on re-openings, you are trying to fix it to only give you an answer you'll want to hear.
I terms of the far north line, I don't drive, so the trunk road network is essentially useless to me, unlike the railway.
You're going to have your mind blown when you hear about things called "buses" and "coaches".
Remember, Wick sees an average twenty four departing passengers a day. That's not "per hour" or "per service", that's two dozen departing passengers
a day. We're talking minibus levels of demand (but operated with a 158 that only manage a mile or two to the gallon, at least two members of staff on board, large sums required on infrastructure/maintenance/ signalling etc).
Heavy rail really isn't the answer to every problem.