This time of year, the cost for a slip is about 1.50/ft.......plus a small resort fee that gives access to all of the bars,, restaurants, beach, kayaks, and other activites.
Including hiking up that trail to the top of hill. Killer view.

Sounded great to us, and we investigated the location of their few 35 ft. slips, knew where they were located, and how many they had and planned on enjoying a couple of days at Scrub.
. We were not thinking of a discount .

As mentioned, when we saw all of those Dream Charter and other vessels at Scrub, , filling up the whole marina, , we just decided to pass and head for peaceful marina cay.
Plus, we had been partying on the Willy T, and then at Leverick Bay for their bbq, and band jump up....going into a mobbed and busy marina was not in our plan .


What the OP might do, is get on the Scrub Island website, with contact numbers and reservation information and be all set when he arrives on a specific date, .
They also have a map of the marina slips and locations for lengths of boats that can be helpful.

Being ahead of the power curve, and be guaranteed slip space might be a good plan..

Scrub looks like a lot of fun, and many different activities to enjoy as well.