I do not see how we can be the ones to answer your question. You are the only one.
Ask yourself:
What features do have
What features do you need
What features would be nice to have
Then is it worthit to you to do as you are asking
Personally the cool pix you have are nice cameras, adn i would not trade one of htem, I do not think. But if I had the money,a nd was missing features, that I need
Then yes I would
OR if I were missing features that would be really nice and that I would use, and could still afford to, then again YES
OR IF money is an isue and I have the features I need and want AND would not consider it a sacrafice to keep what i have, then NO probably not.
Especially not for features that would be kewl but that I would not use much if at all.