Typically, spending only a few days at the parks will cost your family more money, as Disney offers “discounts” on park admission the longer your vacation is.
While I am not one for telling people what to do with their vacation time, I will strongly advise against visiting Disney during peak season if you want to have an enjoyable vacation.
Disneyland’s parks are within walking distance of each other, so you won’t need the bus system to park hop, however, it is great for getting back and for to your hotel after a long day.
If you are looking to plan a Disney vacation, but aren’t interested in staying on property or just want some general advice, I also offer planning services and Disney trip consultation services.