What happens if you try to buy a second bunker GTA?

So, let's say you've already purchased one bunker in GTA, but now you're feeling the urge to expand your operations. What exactly happens if you try to buy a second bunker? Do you just unlock more storage space or do you gain access to new features and perks? Can you manage both bunkers simultaneously, or do you need to prioritize one over the other? Is there a limit to how many bunkers you can own in total? And lastly, does investing in multiple bunkers offer any strategic advantages or financial benefits?