Switching layout can only satisfy the need to run something for so long.
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I Agree and will state it takes a certain breed of modeler to build and enjoy switching layouts but ,still,the interest and growth in switching layouts is plainly there.
I won't go into the whys and therefores because this is a N Scale forum and doing so would only raise a fuss but,I have learned several reasons behind the ISL growth in HO but,suffice to say N Scale still has myths and half truths surrounding it..