Well, I'll preface my reply with "I've only been playing 3 months, but...."

I have both a steel scouting and a nylon classical. And, I enjoy playing both of them. Sometimes, I like playing the acoustic with (or without) pick, and really "getting those strings humming". And, other times, I like to pick up the classical and quietly pluck away classical tunes. It's a different kind of playing.

It's like asking "should I get a hot rod, or a 4 x 4?" Both are different, both have their advantages, and frankly, I enjoy having both.