For the most part I consider the advent of the wide range and quality of RTR locos (and rolling stock) an excellent development for the hobby in that it allows a large number of individuals to more or less accuratly model their memories (or whatever it is they opt to model). Further, I would suggest that the much of the sameness discussed in the thread is only really relative to layouts that are seen in the various media threads and even then only if one is focussing on the locomotives. For the individual modelling his or her bit of Lincolnshire, or Sussex or whatever, their layout is, to them a
singularly individual layout. However, I would suggest though their is a real risk of losing an entire skill set from our hobby. Specifically, rolling stock construction. Years ago I built, from rather basic kits Kits, numerous locos that I wanted on my layout because I had cabbed them as a kid and if I wanted one on my layout that was the only way I was going to get one. Of the locos I built, all but one are now available as RTR models, so the skill set I was sort of forced to develop would probably not be there today.