SSD's are nice and fast but whether its worth it or not depend on what you are going to be using it for. I haven't found many people who actually need them but I have a few customers who get them just to say they have a SSD in their computer. I have a hard time justifying the cost and right now they have limited storage.

If you live on the computer and make your money with it and it has to be the fastest it can be then its worth it. Other than that stick with the moving parts.