Whether or not it's worth it to you is a judgement call only you can make. It's worth it to me as somewhere to go between flights while connecting in MIA, DFW or ORD. They closed the one in my home airport (BNA), so I don't get to hang there anymore.
Personally, I don't pay with $$, but with miles. Some think that's crazy and that the miles are more valuable, but that's what I do.