Well.. I'll tell you this, after doing a head gasket on an 1984 nissan pickup, and more recently my 2001 Montero, as long as you're not in a hurry it's a fantastic way to learn new things. I got way more out of the experience than a truck with a refreshed engine. Sure it was a bunch of work, dirty hands, bruised knuckles, and a fair bit of creative swearing, but in the end I know the inside of the truck far better than I did before, picked up some new skills, and had lots of time for quiet contemplation of all things internal combustion. It was one of those character building experiences of doing something hard for the sake of doing something hard.
I think everybody has those items that they're scared to do because they're hard - could be having a kid, going hunting, public speaking, starting a business, rebuilding an engine, learning to bake. But in my experience everything that is truly awesome is also really hard. If we stay in our comfort zone we don't grow, as an engineer who works all day on a computer I find it pretty vital to be in the lab/shop doing stuff with my hands otherwise I don't stay grounded in reality. Doing stuff that's hard, and not in your comfort zone means you learn respect for people who are different than you, I could never wrench for a living - but people that do it are often very talented, intelligent and they do important work. It's easy to figure people that aren't like you are lame, lazy, and not grounded in "the important stuff," but growing up in a place very different than I am now, and doing a variety of work over the years, I've noticed we're more alike than different.
Anyways, perhaps a bit too philosophical for a discussion of which shock (I prefer the bilsteins because I already bought them:smiley_drive

but important nonetheless...