That's interesting, didn't know they followed a different scale for N. Is it a Continental thing or a UK only variance, because their OO scale is 1/76 and the US and I think most of the Euro continent use HO 1/87 on the same 16.5mm track. There is a noticeable difference between those larger ones, but probably not much with the 1/50 against 1/160. If it's structures/buildings you're thinking of getting, maybe get 1 or 2 just to see. It'll be the details, windows, doors etc that will catch the eye, if placed next to each other, more than the overall size.