Well… your question is unanswerable. Nothing bigger than the Tantive IV (Leia’s ship in ANH) exists in the game. It is one of 5 ships categorized as ‘epic’. Including the GR-75 transport for rebels, and the Gozanti carrier for Empire.
But that format is not supported in 2.0 yet, and may not be.
So if you want Mon Calimari cruisers, ISD’s, and the newly announced Executor SSD then Armada is thataway.
X-wing is a dogfight game, with the largest ships in 2.0 being the VCX-100 from Rebels and the VT-49 Decimator for Empire. Basically frigate class and below. And the answer is… it depends. Right now more so than ever.
The core set is $40, and is the minimum needed. Individual ships run $20 (though stock of 1.0 ships are $15, more on that later). Large ships like the Falcon run $30-40.
So the question depends on what faction you want to play. In 1.0 I could set you up for a single faction with reasonable variety for $100. Dual faction $150-200. That’s a bit harder in 2.0 at the moment due to there being a limited number of ships individually in 2.0.
However there are conversion kits. They run $50 each and are single faction. So Empire only is core + conversion + ships. Or just but 2.0 ships (basically just TIE fighters and Vader’s TIE Advanced x1 currently). So if you wanted to play the breadth of Imperial ships today? That’s $90 plus ships. Yikes. But possibly not much more as 1.0 ships are easily gotten at steep discount, some for even $5 or less a ship. You might be able to but a complete faction set for a decent price, and jump start to a huge fleet for $50-100 for 20-30 ships.
And really, that’s the rough bit. With so few official 2.0 releases yet it’s either limited fleet or conversion kit + buy old ships. For me, a no brainer. I have a decent collection, get the conversion. And I could probably get you set up for any individual faction for $100 + core set. Each addditional faction another $100. Not as great as it was pre-2.0 where aces packs and combo ships made it easy to get a decent variety for cheaper. Plus the $5 per ship price increase to 2.0.
Anyhow if you were actually interested I could definitely give a more detailed look, and point to the kind of discount fleet jump starts of 1.0 stock to maximize value.
Your other option is get a core set, and visit your FLGS during regular X-wing nights and I’m sure that you can find someone willing to lend you everything you need to run any ship. Just say ‘I’m new and would like to try flying a list with the Falcon/ Slave 1/ Defender/ Interceptor/ insert favorite ship here’ and I can almost guarantee that someone will lend you a list and all the ships you need.
All you’d need is the tokens dice and rulers from the core set.
That way you can decide if you want to do more. And that way when and if you jump that rabbit hole you’ll know what ships you really want.
Other than all of them, naturally.