Mountain View Observatory #910027 worth

Based on the catalog data you have on screen, the Mountain View Observatory #910027 — LEGO Bricklink Designer Program Set Value is valued at $355 used and $444 new [1]. The second item, LEGO Mountain View Observatory (910027-1) (BrickLink Designer Program), is currently unpriced in the catalog [2]. For the most current buying/selling decisions, you should compare these sold values against the live asking prices shown on the listings provided to you.