Those concerned about bands not available on day 1... don't jump to either conclusion. When iPad launched, there was a delay on availability of the official black case. But, it wasn't much of a delay. Since watches will be sold in predetermined case/band combinations, they could easily have stock of all combinations but no separate extra bands right at first. You don't know until things start selling.
That doesn't mean you can't plan to buy these things as soon as they are available. Since I plan to order online, it will be nothing but a matter of receiving the items as they become available, if not available at the same time. No big deal.
I plan to get a SS + Black Leather and at least the sport band for cycling. Kind of on the fence on other options at the moment. Also, really not paranoid about being too lazy to switch bands. Sounds like someone is projecting a personal issue on everybody else