I don't know yet but will reach out to my guide to find out. Maybe someone will beat me to it... Usually these are stackable, so you do get a better price on the cruise.
Here's my own "reverse engineering" for that incentive
You can kind of get an idea because it says "save up to $5550 on 150 points" which is $37/pt, and "save up to $8200 on 200 points" which is $41/pt. The resorts it applies to are are AUL, RIV, VDH, CFW and Poly.
So if I assume you get $37/pt on 150pts for a purchase at the most discounted resorts (in the link you sent VDH and CFW are $30 off at 150pts) then you save an extra $7/pt ($1050).
And if I assume you get $41/pt on 200 pts at the most discounted resorts (in the link you sent VDH and CFW are $34 off at 200pts) then you also save an extra $7/pt ($1050).
So, if I had to guess I'd say the additional incentive is $1050, or in that range!