I don't think you should regret it.
This forum has taken on life like a stock-market analysis algorithm and has lost it's roots as a comic book forum. It's either movie performance being argued (and not even story content, just how or why the next movie sequel should be pumped), what the next hot book is, how much it should be worth or why it's dropping.
IMO it's unfortunate as when I joined 12 years ago, most people really just liked talking about comics for their content.
Sure, values were discussed, but it was more of a sideline discussion (oohs and aahs over rising prices) rather than investment being a central theme.
Ah, the good ole' days.