I got into reefing because of stuff I read online. I was interested in the challenge because I get bored of fish quite fast. There was an old internet article kicking around (that one in green text and black background) that described the reef tank kinda as "an aquarium you'll be staying up all night fretting about as you perform a careful ballancing act constantly." Right up my alley
Gotta say I've come back to/sticked with it because of the forums. Haven't been able to find much for planted tank enthusiasts in Canada really.
A good community makes any hobby/past-time exciting really and the forums have been great.