Wow, I have two on order since 3:03AM on pre-order day (42mm SS, black silicone: 42mm Sport, black silicon)...The difference from the 38mm to the 42mm is barely noticeable! In a day of age where bigger is more popular (including watches), when I tried the 42mm on I was completely disappointed by the size! It's tiny. They should have definitely created a 50mm model for a much more manly watch, more battery life, etc...
Now contemplating selling the two and waiting it out just on my opinion about that...