if you live in any area where michael jackson had performed or where he was born then go to that area lots of fans will be selling things! and if your in LA go to venice, or go to the staple center area bc reports say that there will be fans blasting MJ from cars and boomboxes and selling things!!
ex: gary, indiana- his home
apollo theater- NY
LA- HIS HOME!
so really, i think even if he PERFORMED in your city there will be fans gathered there!! and will be selling things at little memorials and tributes to the king of the media, try the mall too darling (: