Can someone please explain sock fascination??

I just don't understand people who knit or crochet their own socks. Okay, knitting is a little more easy to explain because when they are done, it actually looks like socks and not a pair of slippers as with most crochet. But, I can go down to the local Target and pick up a six pack of socks for like 6 bucks. The cheapest sock yarn I could find was $5 a skein and it went up to over $15. Now maybe if you walked around just in your socks, I could see spending the money to show off your skills, but most people wear socks with shoes and pants, so that time and money you just wasted doesn't get seen by anyone. Can someone please explain this to me?