Name the game cost for  merged with new york central to form penn central
CREATE TABLE "table1_243664_1" (
  "railroad" text,
  "game_cost" text,
  "real_life_years_of_operation" text,
  "real_life_eventual_outcome" text,
  "currently_part_of" text
);
SELECT "game_cost" FROM "table1_243664_1" WHERE "real_life_eventual_outcome"='Merged with New York Central to form Penn Central';