I am new to here, I've been lurking for a few weeks and been fascinated / frustrated by some of the debate.
I chose my first bedroom in Stonehaven in the mid 1970s because I could see the railway from it. I witnessed the disappearance of the Deltics to be replaced by the HST. One of the first railway journeys I took was in the late 70s from Stonehaven to Montrose on the new HST, to visit the new Fine Fare supermarket there! Changed days, but it was a big deal at the time.
I have a deep affection for the HST and was absolutely delighted and excited to hear some of these grand old ladies would see out their days plying the scenic routes across Scotland. To my mind, a fitting retirement for them having, arguably, saved British railways after the APT episode. There are very different views on this, I know, but that's not the point of this post so please don't have a go on that front, each to their own opinion, I hope.
Anyway, living in highland Perthshire now, I travel the Pitlochry to Edinburgh route regularly, or at least I used to. I mostly drive now as the service, particularly in the summer, is nothing short of abject misery. Mostly 170s stuffed to the rafters with tourists and luggage, hot, noisy, buses-on-rails, it's an awful experience right now. Tourist numbers are massive just now but the current service is a complete embarrassment to Scotland. If I can't take the 0924 LNER HST to Ed, I drive instead.
The reason I searched t'internet and ended up here was that I wanted to find out where the mooted HSTs are! My questions have been answered but, notwithstanding the various arguments and opinions about this and that, the HSTs are DESPERATELY needed on the highland line right now. I'm biased, I know, but I think when they do come they really will transform things, not seen since they first came in way back when I was 8 years old in 1979. I'll certainly be returning to the rails when they eventually come in.