Well, I got this info 2nd hand (so take it as such) and already it doesn't fit with mmouse37's quote... unless Costco is calling a Cat. 7 just an ocean view cabin instead of a balcony cabin.
But this is what my friend was told when she talked to someone at Costco:
The last day of discounted prices was 3/21.
With the new program you receive a Costco store credit to use AFTER you complete your travel. The credit amount is based on cabin catagory.
Inside........... $200
Ocean View... $275
Balcony........ $350
Suite............ $500
Again, 2nd hand - but it does fit at least some of the quotes that are coming back.
Logan1_2000,
I have some actual numbers from before the change over.
No air, transfers, or insurance included in any of the quotes.
The DCL price is the website price on the same day as the Costco quote.
2 adults one child Cat. 7
DCL $3,750.67
Costco $3,439.53
2 adults 1 child Cat. 11
DCL $2,540.57
Costco $2,341.53
I have not backed out the exact numbers since all the quotes do include taxes/port charges (which are not specified on my paperwork) but no one discounts those. So it looks to me like the discount was probably 10% off the base cruise fare.
Can't say for sure how Costco worked/works with an onboard booking - but I have seen people post that they booked onboard and got that 10% discount and stateroom credit then transfered the booking to Costco for even more savings.
Of course like you mentioned... it's pretty rare to find actual numbers posted.