I feel why the op seems to prefer Miami. It's difficult for those not born and raised in tropical countries to understand the impact that the lack of sunlight has in our lives. We're used to have a good amount of sunlight during the 365 days of the year. At least the Silicon Valley isn't all bad in that sense...

p.s: I haven't been to Réunion, but I flew over the island when I went to Mauritius. It's indeed tiny but it is extremely beautiful and exotic too \0