Every now and then I think about getting a DVR, but then I realize that I don't need to watch more television. I just decide which shows I'm going to watch and hope I can catch the reruns of the others in the summer (which never seems to happen for some reason).
I've had a DVR since 2001, believe it or not. I was one of the first people I know to buy a TiVO, and I've never looked back. Heck, I even paid the $250 to get the lifetime service. Unfortunately, that box didn't record in HD, so when I got the new flatscreen, it went into a box in the garage. I'm prolly going to send it to my Dad, though, since the box still has the lifetime service subscription.
Cassie, the reason you don't see reruns is because very few networks run 'em in the summer any more. They all run "summer series" instead, which can sometimes be good, but oftentimes are just dreck like "Persons Unknown".