Well, I would, but I do not want to get it confiscated should it be seen. I don't know if my parents would come to pick it up, either. Also, I'm kind of wary of wearing it because I don't want people pointing it out every 5 seconds and saying something negative. I'd definitely wear in a collegiate setting, though...
But the experience gained with walking is awesome, though. (I also have a D3 Digivice from the Digimon franchise that is similar in nature to the PokeWalker, so I can grow 2 Monsters at once! And with the original Digivice, 3 Monsters can be grown all in one run! :D)
I haven't tried the "washing machine" trick, though; with the D3, I either had to walk around or shake it vigorously in my hand... I'm sort of doubtful about the "washing machine trick", but if it works, awesome!
EDIT: And it still annoys/infuriates me that Pokemon is one of the very few things that used to be immensely liked in school, and now it's unfortunately being viewed as some type of taboo if it even comes up in conversation. Other than Power Rangers (which is awesome, btw), I don't think any other franchise has to suffer under this scrutiny. I'll help restore Pokemon (and PR) to its former well-liked status, one day!