I suspect you will get a broad spectrum of what people like and want to see.
Personally, I like Steam Locomotives and want to see them working, up close and personal. See the parts in operation, HEAR the parts working… side rods, air pumps, brakes, fuel feed mechanicals, water handling… If it does something, show it doing what it does and how it does it.
Narration can be a good thing, if the narrator (sound editor) is not so rude as to continue speaking when the locomotive is ‘speaking’. Narration should be clear, concise, and spoken by someone that knows how to pronounce words correctly. In a similar vein, on-screen text should be readable, spell checked and quickly removed so as to not interfere with seeing the subject being displayed.
I don’t mind “establishing shots” as long as they are not used just to make the video longer. If all you have that is worth while is 10 minutes of video, don’t add 50 minutes of opening credits, establishing shots, and closing credits to make it an hour of video. If the ‘subject’ of the video is not in the scene, the scene should not be longer than a second or two.
Similarly, if the video subject is Steam Locomotives, I don’t really care to see and hear 3 year old children clapping and squeeling and immitating the steam whistle. If you want a video about how children react to a RR, by all means, make that video, advertise it as such, I will let those that like that sort of thing buy it.
Music can be an other pleasure killer. Too often RR music is seen as always having to be ‘plinky-plinky’ country-western-hill-billy banjo and harmonica noise. Just because the video processing equipment has the ability to add background music is no indicator that it must be used. For me, Glenn Miller’s “American Patrol” would be great background music while pacing the U.P. 844 accelerating up a hill, but ONLY if WAY in the BACKGROUND. Again, if it interferes with the sound of the locomotive,