A crashed rally car led me back to this hobby a long time ago...
I had a small HO set as a kid, and fairly well wore that out.  I still have some of the cars but that track is long gone.  I enjoyed it thoroughly and remember racing with my brother and cousins up in the attic, and rebuilding the cars to see how much faster I could make them (or not).  Eventually, I moved up to real cars and left the little track to collect dust- or more likely to get pitched when my parents cleaned house.
I kept those cars around without a track because hey, they're small.  They don't take up much space and I like them.  But then...  
At one point in my life, I stage rallied.  My promising career as a factory Subaru/Mitsu/Citroen driver alongside McRae, Sainz, and Makkinen came to an abrupt end on the 1999 Oregon Trail Rally, somewhere in Vernonia.  I went sideways into a tree at about 40 mph.  I hit just behind the driver door and it was hard enough to taco-fy the left rear wheel (including making it a multi-piece unit), bend the rollcage, and make me unconscious.  Clearly I am fine (right?), but I earned a flight on a helicopter and a weekend stay at the resort known as OHSU from it.
Upon recovery, I started salvaging what I could of the car (1979 RX-7), part of which was a quick ratio steering box.  I sold this to someone in New Zealand, and they paid me via something called "Pay Pal".  Yes, this was around the infancy of the "internet", so I had this sum of "internet money", but didn't know what to do with it.
One day, on that very same internet, I stumbled across a gorgeous little GT40 model.  This one was different- it had a motor and a guide!!  It was a slot car!  The specific one I found was a Fly Mk I GT40, which as we all know, is a beautiful, but horrible slot car without being worked over.  I didn't know this at the time though, so order one up I did!  It didn't even cost me "real" money.
So then I had a slot car, but no track.  Time to fix that...  I found a listing for someone who bought track sets and sold off the cars and track separately.  Boom!  Got me a track now.  Still for free, even!
Now running one car by yourself can be a little boring, and I still had internet money left, so I bought my first Slot.It 962 (my other favorite Le Mans car).  
My fate was sealed.
This car blew me away.  I was hooked.  I was living in Phoenix at the time and scoured the internet to found some local nerds who raced on Weds nights.  This worked perfectly with my schedule, and I fell in with the AZ Garage Racing crowd- a fine bunch of mini-gearheads.  After racing with them for about 2 years, I moved back up here to Portland and found another guy on the internet who lived in Troutdale and had a sweet track in his garage.  I think you know the story from there...