My guess is that you're a high roller and maybe they take better care of them than everyone else. I'd bet, if you bet at my level, you'd not be treated so well.
Just my opinion, but I think they'd not give a rats butt about you if you didn't give them good reason to take care of you, read $$$. Which reminds me - casinos are not our friends. They are only friends of money. They have no vested interest in caring about us as people. That is reality and what makes their worlds go round. At the end of the day they only look at their ledgers......and send chocolates to those whom they would really like to extract more dollars from. Heck, they even chase their losses too.