A couple of years ago we had the same problem, our daughter was working at Disney then and had a great
Disney cruise at a super CM discount and asked us if we would go on one. Seeing my wife and I have never been on a cruise and the 2nd cruise price was too good to pass up, we agreed to go. We're from Ohio, and going all that way and not going to the parks didn't sit with me that well. He's what we did, we booked one night at the Caribbean Resort, mainly to provide transportation to the cruise via
Disney Cruise line bus. That was a new experience since we never stayed there before and it was great, bus meet us all going on the cruise out front next morning and luggage and what not was all taken care of, just boarded bus, took a seat and motored to Cape Kennedy port, seeing the cruise boat from the bus coming over the last hill got my goose bumps rising. Quick port duty, check in and enter boat in about 30 minutes.
Upon finishing our cruise, we decided, or should I say our daughter, that we spend 3 night at the Contemporary Concerige tower at her discounted CM rate which we did and I'll never forget that trip both the Carribbean Resort, the Disney Cruise or the Contemporary. We purchased AP's earlier in the year since our daughter moved to Kissimmee so park tickets were no worry to us, and we were going to WDW 3 times in a year then. She has now moved back to the Ohio area but we still go back to WDW, not as often in a year, occasionally buy AP's and are contemplating another cruise with Disney but the western one. We took the first one at 7 days, her first cruise was 3 days and she said that was not enough time to fully enjoy the cruise hence our trip of 7 days. Just the right amount of time for us on the boat.