It worth it. I switched completely to freshwater but I'm setting up another tank for freshwater. Like saltwater and freshwater are completely different and in order for your life to be completely satisfied, you need to have both.
I had a 55 gallon FOWLR tank when I was younger. I really enjoyed it. I'm becoming bored with the residents in my 180, and have been thinking that would be an awesome size for me to get back into saltwater with. Just not sure my budget is ready for me to make the jump.