One of the reasons that lines like Wading River and Manorville were abandoned is because no one ever thought that the North and South Fork would be anything more than sleepy farm communities. Sure, it's a little short sighted, but the fact is 70 years ago Nassau and Suffolk counties were predominately farm communites.
That's the SAME reason why the wonderful and efficiently built New York, Westchester & Boston (NYW&B) went belly-up at 12:01 am on January 1, 1938 after having been in business only since 1912.
Smooth grades through rocky terrain, multiple tracks along well-graded roadbed, substantial concrete towers and stations with high-level platforms. All electric service in new MU equipment (overhead catenary system: no 3rd rail to step upon). Tickets checked at the platform (no commuter crush on board the train for train crews to push thru in the attempt to punch and take tickets), and those tickets in a colored stock so the collector on the platform could see at a glance the rider's destination without having to read the ticket, plus an almost-direct route from Westchester to NYC (involved a change to the EL at E 180th St.).
But . . . .the part of the Bronx through which the road ran, along with New Rochelle, Pelham and Westchester were not yet the communities they are today or what they became after WWII, only a few short years after abandonment.
So . . . the LIRR is not alone in making these type of decisions. At least they didn't go belly-up, thank God!!!!
Dave Keller