...and then you make a teeny mistake and BAM, you're dead or crippled.
I loved bikes, but I've had no urge to replace the ZX6-R I sold a few years ago. In a car you can usually get away with the odd mistake with only dented pride and a repair bill. On a bike you need to be 100% focused to avoid casualty. I had a few very close shaves (including bouncing down the road in my leathers) and decided to stop riding my luck and stick to 4 wheels. I found the temptation to do silly things too great on a bike. I was cranked over doing 125 on a sweeping bend on the M25, looked at the armco and thought "wtf am I doing?" - sold it soon after.
Can totally relate to the experience of the OP - first time I rode anything larger than a 125, when I wound the throttle on it felt like the rest of the world had been put into reverse.