Started with classic, city bicycles (single speeds).
Then got first MTB. I love sand, grass, off road, jumping, mountain downhill paths etc.
After I turned 30, most of my mates stoped riding on weekends. So 99% of my ride was commuting, or visiting friends and relatives via bike.
So I sold MTB and got a nice hybrid. I can still do 99% of MTB roads (when it's dry though), but paved roads are much quicker, nicer.

After several years, since i LOVE speed, I was tempted to get a racing motorcycle, instead of the current sport-tourer. That's too dangerous in public roads, no race tracks near home. But... a race BICYCLE?! Yeees. So I assembled a nice road bike, found a small veteran club (mostly 30+ ex racers) and LOVE it. It's my first ever bicycle without fenders, racks etc - just for fun and sport. And it's great.