BC.Game vault question

So I was poking around with the vault thing and I can’t totally figure out if it’s better to keep a chunk of my balance in there or just always keep everything in the main wallet. I know the vault is supposed to be for “safe keeping” but like, what’s actually the advantage? Is there any point in moving back and forth? For context, I do a mix of sportsbook bets and a bit of crash or dice if I get bored waiting for games, so my balance does bounce around a lot.

Also, is there any difference in how bonuses or rakeback works if my funds are in the vault versus just sitting regular? I’m kinda paranoid about missing out on rewards if I use the vault too much, or making it a hassle to pull stuff out when I want to do a quick bet during a live game. Does anyone here actually use it regularly or do most just ignore it?