Of course you would have all your armor in one place. 1000 pt front line is fairly typical.
If your sector doesn't have a town, the front line will be armor. and the armor would be something like 4X150 and 10X80. or 8X100.
On some maps a big tank front does not develop, but it happens often enough that a low side armor is serious weakness.
Of course you can always make a israel deck for tactical or something.
Are you playing a 10,000 point game or something?
Hell, most of the games I've played I barley had 1000 points at all!
You start with that much.
look at post game statistics, you will see typicall you will earn sevral times that in income over course of the game. Subtract any kills and losses and you can see how big an army people typically end up with. 1-2K is fairly typical, and 3-4K is not uncommon in large games.
Poking each other with a tiny stick is the popular meta, but big fights do happen. As I said previously, some maps (cough cough wusang) prevent them by design.
In team games you can also have more than one player at one front. Then you get some truely massive battles. might as well use the Merkava as an ATGM launcher in those.