Hehe..far from it. The company I work for provides field personnel for tasks and decided several years back that all field personnel and office personnel will be provided laptops so they can work in a mobile fashion. Problem is, to make life easy for their IT personnel, they locked all the computers with specific images and then further lock personnel out of administrative rights so you can't even install your own programs on it. Most of the other field guys I work with bring two laptops with them - their personal laptop for personal stuff, and their work laptop for work stuff. However, my field job requires me to keep an array of Desktop computers active at almost all times. Since these desktops are also work computers that have the same image on them, I usually just use them for immediate work purposes. Since I go back to school in my spare time not in the field, I have to be able to install programs I need for school on a laptop, and since my office laptop does not permit me to do so, I just leave it in a corner and fire it up whenever I am home and need it for a couple of minutes of work.
With regard to your consideration to use the Panasonic Toughbooks, a couple of guys for another company I've worked with use Toughbooks for their operations in the field and all I have to say is that it took roughly 20+ roughnecks roughly 2 years to finally bust that thing. I think the do try their best to deliver on their marketing.