When you say you are a fan of someone, do you say "I am a fan" or "I've been a fan"?
Please see my example below:
A: Why did you buy this CD? It's full of crappy tracks!
Me: I bought it because I am a fan of this band.
Or is it more correct to say that you are a fan by using present perfect continuous?
Me: I bought it because I've been a long-time fan of this band.