Other than the 16C I had around since new, I never really paid attention to the little guys. I had used them occasionally, I mean, who hasn't at least used someone's 12C, since almost everyone seems to have one. I was always a 41C/CX user, and later used my 48GX heavily in my engineering classes. That changed a year ago.
When I was getting back into a little collecting (I really have to fight hard to keep a lid on it), I allowed myself to pick up a few others, bought a mint 12C just cause, but grabbed an 11C and a couple of 15s as well. In addition to bringing my 16C out of retirement, these little guys are all I ever use. I forgot what a great form factor they are (not so much standing around in a field, but desk work), and you never, ever have to charge them or buy batteries.
I've caught myself aquiring a few more of each now, in better condition that I'm going to store for when these (if) give it up. I know HP isn't going to replace them. Too bad. Long live the Voyagers.