Currently, I have a habit of checking the price on the hotel's website. Oftentimes, I could get a better deal with "member login" (mostly just Google OAuth) or

Currently, I have a habit of checking the price on the hotel's website. Oftentimes, I could get a better deal with "member login" (mostly just Google OAuth) or promo codes posted on the front page. However, many hotels use external systems for booking and payment handling. I wonder how long those systems will take to start offering the same tricks as big platforms.