I reread the booklet and on page 10 I read:
"Approximately 8000 people travel through the Alell system weekly, with about 57,000 tons of cargo. Many of these people never leave the port, merely using Alell as a stay over for longer trips. However, there is a significant number of tourists making Alell their destination. Alell caters to these tourists, and there are literally hundreds of tourist companies to make the proper permits and permissions easier and less of a burden."
...
This sounds like a PR stretch in it's wording.
Note: it says 8,000 people travel through the Alell system weekly. It did not say 8,000 tourist.
Not calling the PR add a liar, but sound more like typical PR promotion of stretching the truth a bit to what is preceived to be real.
I do understand this is all a work of fiction, but since you asked how many tourist come through, it just might be a lower number than this.
Also, who says they have to stay 2 weeks? Maybe some stay a month and some stay for several months.
If you are going to spend that kind of money on a possible once in a life time trip, you will try to maximum your stay.
As Aramis pointed out, the wealthy will probably visit more often (repeat users). They also might have a condo/share time/ or even dedicated section sponsored by some company that they use regularly.
If that is the case, business might send good customers for a free trip there or even take large group of prospective clients there for wine, dine and spend your time presentation.
Just some of my thoughts.
Also, you might consider the Atlantis Resort as a model in this thinking of what may be present.
Dave Chase