I am also from Hawaii, specifically Nuuanu.  
Been Collecting cels for about 5 years now, and 
have seen very few anime cels for sale locally, 
and those I've seen have been greatly 
overpriced.  The majority of my cels have been 
purchased either from Ebay or online sites.  
     I think it would be great if a convention or 
expo would be held here, and if not I would be 
interested in meeting other collectors to see 
other people's collections!!