So here is the "Disclaimer" for Disneyland Resort (did not see an offer from WDW)...
Offer is valid for bookings from March 16, 2010 through September 1, 2010 and for arrivals from May 1, 2010 through September 26, 2010 with travel being completed by October 1, 2010. Upon the purchase of a 3-night package, with 3-Day Disneyland® Resort Park Hopper® Bonus Tickets at a participating hotel for a family of four (3 adults and 1 child (age 3-9)), two (2) consecutive free nights will be added to the Hotel stay and two (2) days added to the tickets. Offer applied once per package/reservation and not valid for previously booked rooms. Check for offers associated with other lengths of stay. The Disneyland® Resort Park Hopper® Bonus Tickets expire 13 days after first use or October 31, 2010, whichever occurs first, and each day of use of a ticket constitutes one full day of use. Tickets may not be sold or transferred for commercial purposes. Offer subject to availability; advance reservations required. Not valid with any other discount or promotion. Subject to restrictions and change without notice. Walt Disney Travel Company CST: 1022229-50.
So to me, that means that unless I purchase four sets of park tickets I cannot get the better rate on the room.