*shrug* I've had my K2 for over a year. I commute with it on public transport, so I've tossed it into my various bags 4-5 days per week, and no problems.
I'm reasonably satisfied with the robustness of the device. If you find it isn't solid enough
for you, I won't debate that. But given a choice between the anecdotes of a guy who had one for 3 weeks, and my year-plus worth of experience, I think I'm gonna go with the latter.