A Lot Like Vegas

Maybe he's talking about their wild partying/gambling/chaotic relationship and wanting to leave it for a while?

''So cash in all your chips tonight baby'' - gambling reference.

''The only place I'll call home is my death bed,''

• the only time he'll go home or stop all the partying is when he dies from it basically.

''And it's not a party if it happens every night, I'm running on empty, you're running out of luck'' - tired of it, getting all the same. boring?

I don't know. Just a basic guess.