X-wing lacks a clear "second" purchase.
Just the other day a couple was playing with a original base set in our local store and asked the regulars what they should buy next. General consensus was they should buy a TFA starter set. While it's a smart buy if you want a two player collection it's not really what I would call a great buy. Especially if a player is really excited about a particular faction
So my recommendation is this.
Rebel set with a y wing. X wing and e wing.
Imperial set with tie advanced, bomber, and defender.
These sets would include enough upgrades to get a starter set to 100 point armies and provide upgrades to patch old ships like a new x-wing and tie advanced title.
Well that's my thought.
Edited by TylerT