I beg to differ and believe that the speed and efficiency of the service is important, though I admire your optimism.
Everything comes down to economics. 99% of the potential market would be Buddies and Weegies. they only want to get from a-b.
It's NEVER going to be a scenic trip, so you can also discount tourists. They will put up with a wheech round The Abbey, Toon Hall, Coats Memorial and lots of the other architecture - a wee bit about Tannahill and the Bruce, and a 10 minute lecture on St Mirren... but they would prefer the Highlands, lochs, glens and islands.