Let me save you.
Go to Cancun and visit the pleasure principle. It's renowned to have the most beautiful women in Cancun working there.
Go blow the cash on a different girl every night, that's what I did and it was amazing!! The service provided by every girl was 10/10 always.
Now do it and thank me later
There are benefits to overnight or longer bookings that you don't always get with your methodology.
1. Sex on demand, whenever you are in the mood. Maybe first thing in the morning, maybe in the afternoon, maybe even at the beach or in the pool.
2. Social elements. Someone to go for dinner and other places with.
3. The relaxed nature of a longer booking, that you don't have to jump straight into sex with one eye on the clock.
4. When you get to know a particular girl, and what you both enjoy sexually, it can get better with each session.
5. You don't always get a guaranteed good punt, regardless of how beautiful the girl may be. If she sucks in the bedroom, her looks soon wear off.
Obviously it makes little financial sense to do a longer booking and spend lots of money on flights, hotels, food, but its cheaper than a girlfriend and if you only do it once a year and its paid for with your 13th cheque, it doesn't matter.
Your advice is good, but its one opinion, not always the BEST option, or the ONLY opinion