Might sound silly, but the first instrument I played was a recorder (must have been very young), anyway I didn't really like it and stopped after two years.
A few years later (still very young) I remembered buying a Casio (SA-something) keyboard at a local toy shop.
Years later I bought my first "real" arranger keyboard, a Yamaha. I liked the idea of being able to play so much different instruments.
And that's how I got into playing an arranger keyboard.

- Dragon -