If you need more space, RENT DVC points! It is much more cost efficient than rack rate and codes! Or, stay in the Family Suites at the All Star Resorts! My uncle/aunt/cousins stayed there and loved it!
This is copy and pasted from All Ears site:
Off-site Disadvantages:
•Getting to and from the parks may be more difficult. This is more important if one plans to take afternoon breaks from the parks.
•On peak holidays parking lot(s) at WDW might be closed.
•Quality of the rooms varies; as does service.
•Off-site guests must pay for parking at Disney theme parks if they drive unless they have an Annual Passport.
•Shuttle service is limited at many hotels, some hotels share shuttles making the service very slow and/or crowded, and some hotels charge for using their shuttle service.
•Hotel staff may be less familiar with Disney property.
On-site Advantages:
•Getting to and from the parks is generally easier. This is more important if one plans to take afternoon breaks.
•Immersed in Disney Magic 24 hours a day.
•Disney resorts offer wonderful theming.
•Disney staff provides excellent service.
•Properties are always clean and well-maintained.
•Priority on tee times on Disney golf courses.
•Room-charge privileges throughout WDW.
•Ability to purchase Magic Your Way tickets.
•Merchandise delivery to your Disney hotel.
•Access to WDW's closed circuit TV information channels.
•Unlimited use of WDW transportation system.
• Magical Express transportation to/from airport to WDW Resort at no charge
•Able to purchase
Disney Dining Plan.
And here is the link to the Family Suites.
http://allears.net/acc/g_asuites.htm
Also, the BRAND NEW Animation Resort (bookings available beginning in April!) will have many family suites!