What you think about it dude (without sounding rude) is irrelevant. ESD exists and it's a killer. Of course, wearing a strap is annoying and gets in the way but it's one of the few ways of making sure..
It's when you end up doing something without thinking that it catches you. And yeah, you might go for years without damaging anything but it can and does happen. And when it does it sucks serious bum.
Honestly you would be utterly amazed at how little static it needs. Over the years I've done in quite a few motherboards with static. Can't prove it of course but I know it was static. I didn't even see a spark on those and one of them was an absolute gutter.
Years ago when working for my shop I was given a QDI board. Doubt you will remember the company but they kicked all kinds of ass before Asus and Gigabyte showed up. Any way, this board in particular was dual Slot 1. Which was nothing out of the ordinary in the server world but this one was built for home use with NT/2000. Full EATX, onboard LVD scsi (which as an Adaptec card was worth about £400) 8 SDRAM slots, etc etc. This bastard cost about a grand.
Any way, after a lot of arguing with QDI I managed to get it replaced out of warranty. However, the owner of the company (I'm like a Jack Russell when I need to be dude, once I get my teeth in I won't let go and went right to the MO) basically told me to take the new board and f**k off.
I got it. Was fitting it. Forgot a screw, put it down, come back, picked it up. SPRRRK. Gone.
The worst part of all? This board cost over a grand. And I had kind of burned my bridges.