@SteveE , I know that smelling all the vendors’ goodies will settle that heart rate down very quickly and probably lower your blood pressure. I know that smelling different blends, essential oils, perfumes, absolutes, tinctures, etc., always puts me in a good mood and lowers my heart rate! Hope to meet you in person!
The only drawback I can see for Singapore is costs as space is at a premium and so the rental costs to hold the event there could be prohibitive. This is the same issue with Hong Kong.
I don't have plans to visit any of those cities anytime soon. I would however fly to Melbourne Australia? That would be the best place I can think of within Australia where there would be interested punters.