treasure island的daily resort fee - 拉斯維加斯

訂了TI，收到confirmation中提到
"To enhance your guest experience, a daily resort fee of $20 plus tax is added
to your room account and includes several resort amenities (e.g. in-room
internet access, fitness center access, daily newspaper, etc.). "

意思是，每天我還要另外付20元嗎?

在它的網站上看到
TI $20 + TAX DAILY RESORT FEE INCLUDES* VALUE
In room high speed internet access $15/day
Access to fitness center $17/day
2-for-1 Cocktail (one per stay) $9/each
Buy 1 Get 1 Lunch Buffet(one per stay, valid Mon-Fri) $18/each
Daily local newspaper at Guest Services $1/day
Access to VIP viewing area for Sirens of TI Priceless!
In room local and toll free phone calls $1/call
Printed airline boarding passes $5/each
Copies and faxes (up to 10 pages) $1/each
$20 credit for future stay (one per stay) $20

TOTAL VALUE OF RESORT FEE AMENITIES Over $90!
* Resort fee amenities are subject to change.

不太懂這20元的作用是什麼?
不曉得有板友知道嗎?
謝謝。

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