I really don't get how these e-watches will ever take off in a big way. They may make successful niche products, but I don't see them replacing real watches.
I've been wearing a Timex Expedition since 2001. Actually, I have two because I lost my first one and had to buy a second one ( same item ) but then found the first one when my brother was moving and it turned up in one of his packed boxes... Anyhoo, the battery in the first one has had to be replaced once, and the battery in the second one, which I got in November 2007, is still going strong.
I just don't see the point in replacing a perfectly reliable timepiece with one that will be worthless if I forget to recharge it every night.
Basically part of the marketing is creating new needs that you did not know you needed. Like, you need to answer your phone by just looking at your watch, or you need to know how many steps you take in a day or how many calories you burn between getting out of bed and getting your lazy butt into your car every morning, you need to see text messages on your wrist rather than going to the excruciating trouble of taking your phone out of your pocket! *gasp*, or you need to see weather on your watch, or your next meeting, in addition to the time...
You did not know you needed any of that did you? You're welcome.