West Palm Beach
There's no real reason to buy a second Core unless you're talking about getting the *other* Core (original vs. The Force Awakens).
I would disagree. A second core is actually a great value. You get extra dice that you will need and basically three expansions. Plus and extra damage deck, templates, back up asteroids etc...
At some one you'll want to consider this. If you're stating small even this gives you 4 TIE and 2 X-Wings.
But yes, you'll want an expansion or two later one just for the pilots and their skills.