Alas my friend you are unlikely to get comped unless your spending a lot of money... I saw a guy do $100,000 and all he got was $4000 back... not a great rake... they also gave him on a credit card to spend in their hotel shops...
Now if you can warrent $100k spend to go on a $4000 shopping trip then I have a bridge to sell ya...
Alternatively win a $8 Million Jackpot on the slots and see how quickly they comp ya
Only other plan I have for you is this... get a friend who is good on the phone to call the hotel the day of your arrival... make sure its before you get there... When they call get them to tell the receptionist they need to speak to the manager...
Get them to tell the manager that they are you PA and that you are the CEO of a very large IT company... get them to swear the manager to secrecy as your looking to keep your trip low key... but that its on the back of you signing a massive multi billion dollar deal with Microsoft... and that Bill may even visit at some point during your stay...
Get them to leave some random message along the lines of a money transfer being cleared for you to enjoy your stay and that not divolging the figure it's a 7 figure amount cleared on your american express card... entrust it with the manager and that he is the only person to relay the message direct to you... and that he must not alert anyone else as to who you are as you want to play it low key...
When the manager gives you this information ask him two questions... 1. what the table limits are on roulette in high rollers pit, and if these can be raised ? Secondly in passing ask if the hotel as a jewlers and get the number for a private showing... tell him you want something expensive for your wife and soemthing even more expensive for the girlfriend...
If this doesnt get you a couple days comp in the plush royal suit then you aint going to get it lol... in honesty you will do well to anyways... as I said they want some big ass money before they comp...