Personally, I'd like one in my house. I'd have a couple of panels, Eiichiro Oda and Akira Toriyama would be coming with VIZ Media. FUNimation and Bandai Entertainment would be there doing there ever so awesome thing, the latter bringing Aya Hirano for a glomp-session whilst the former thought they'd bring along Vic Mignogna for another glomp-session. Several companies would be coming to sell off their merchandise and DVDs for extremely over-priced prices. Hironobu Kageyama would be also attending for a concert in my garden, featuring all of the JAM Project.
It would last three days in total and be, of course, invite-only.