Alan,
I had in mind myself and a couple of people I know but not from Canreef. Also, I shouldn't have restricted my comments to just salt water. In the past, before I really got the bug for salt water I was in and out of fresh water for many years, and for many reasons. I never had the passion for fish keeping until I went salt. I don't have to tell some of you how scarey it can be when you first take the plunge, and I'm not knocking anyone's reason for leaving except this one. Does that make sense?
Anyway, its this respect that makes the hobby rewarding and keeps us in it long term. This seems to be lost on those who just want a pretty glass box in the living room. For those people this is just a fad. I compare it to a common New Years resolution to go to the gym, where half the people aren't there after March.
I hope this makes more sense and sorry if I offended anyone, that was not my intent.
PS. For the record, I'm going to have a son by summer. I hope I can use my tank as a learning tool and an activity that we can share. I think its more productive than watching T.V.