But most importantly, shoot with what you have at its best. That will get you good images. Then, when it is time to get another lens you will know it. And remember, no matter what you buy or how much it costs, the manufacturers will come out with something newer before long. Information for the attached images.
Macro photography is the one area where the specialty lenses shine.
They are designed to be used close up and give their best performance when used that way. While you can get very good results with mild telephoto lenses and a close up filter, or by using an extension tube for closer focusing, a true macro lens will work even better. If you only shoot close ups occasionally the filter will work well. But, if you do a lot of it, save for the specialty lens. I find I use the 200 micro more and more as time goes on.