porto fino and capri are known to sell everything... even LV.... at a mark up.
porto fino's docking fees are if i'm not mistaken more than monaco's, or so i was told, hence all the super rich of italy tend to gather there or as one milanese socialite put it in a very caustic manner to me, "spit on monaco".
the lv boutique opens to (if i'm not mistaken) midnight or elevenish or some ungodly hour like that.
the basic feel of porto fino is that of pure luxury, but don't expect to be treated well, they are notorious to treat everyone badly
and yes naples is a scary place in general. in naples people wear their watches on the right side and hide their wallets and extra lot to avoid being robbed. why watches on the right side... cos italians drive on the left, if you stick your left hand out and your watch is there you'll get robbed. dunno how true it is but from the time i spent in italy that's what the northern italians used to tell me like it were the gospel. don't let it scare you though because northern italians tend to be paranoid and "freddo/fredda", i.e. cold.
personally my favourite hermes store is the one in venice. nicest SAs around.
if you're going shopping for fashion in italy though,
nothing beats milano. rome, venice, porto fino, capri, naples, sicily, etc. all come very very distant seconds from it.
ps emma... yr not going to get much luck with scoring a birkin in seoul and kuala lumpur because they are usually reserve for the local celebs/tycoons, or uber regulars. even so they go at costlier than what you would probably pay in the states or in europe. That said, the other stuff you can probably get at a good price at the airport because it's tax free. I know there's an H store at KLIA, am not so sure about Seoul... though I didn't recall seeing one (having run through to catch my flight) I could probably be wrong.
hope that helps.