No issue for me sharing, but I have to break it out over the course of the trips and spread the cost of APs. This is for a family of 3 adults (DD12 is a Disney adult).
Week 1: WBC ($560 7-nights), APs (3 adults $700), 1/2 of RT drive ($100), food and drinks ($300 mostly at WBC), souvenirs ($200) = $1,860
Week 2: OLR ($710 for 7-nights), APs ($700), other 1/2 RT drive ($100), food and drinks ($300 mostly at OLR) = $1,810
Week 3: OKW ($700 for 7-nights), APs ($700), flights ($550), food, drinks, souvenirs ($1,200), Disney bus waits of 16 hours ($40/hr = $640 for my time sitting and wasting time waiting) = $3,790 *Quickly shows why I stay offsite
Week 4: Reunion ($550 for 7-nights), APs ($700), RT drive ($200), food, drinks, souvenirs (estimates $750) = $2,200 - Disney rewards = $1,900