In Drag racing I am sure that the accomplishment is awesome with a good engine build, and feeling yourself pressed against the seat when you accelerate.
Racing, I can see the precision required to turn fast lap times. With any kind of activity that is just "to see if I can do it", at least with any kind of racing or flying, you can get your heart rate up a bit. You know that adrenaline thing you don't get when your sandwiched between the monitor, keyboard, and chair?
I enjoy Autocross and SCCA, tons of fun. Benching 320lbs. on my Bowflex (and yes, my legs are developed too! LOL). Getting out of the house is a great idea as well. My son and I love to go skateboarding, find a new set of stairs or a smooth manny pad.
The difference is that when your done your not just sitting and looking at a number on the screen that says 600.3Ghz CPU speed with the words "You are teh L33t35t Overclocker in teh world!!!!" flashing all over the place. Well, I bet they wished that happened anyway.
Crazy OC's on LN2 have to be extremely boring considering what you can actually do with the rig when you get done. 4 separate temp probes, expensive LN2 tubes, and having to handle a liquid that will destroy you and your equipment.
You stressed components, that's it. Made some key presses in the BIOS and tried to boot. Got a screen shot. Is that it? Oh yeah ran some benchmarks and posted a score. Wow, I can hardly contain myself.
Well I'll settle for a Level-Headed OC any day, that way I can spend hours playing a game, watching a movie, listening to music, hacking into and stealing your Mom's private pictures, or just shutting the PC off when I'm done without having a workstation that looks like PC parts just fell into some LN2.
Like the other guy said though, to each his own.
P.S. your mom is SOOOOO hot! J/K guys, ease up.