Lol that is quite the question to ask on here

There are a lot of us that are very "pro live plants" so I think you are going to get a lot of "yes, get plants".
There is another discussion going on about easy to grow plants which would be worth checking out:
When you go to the LFS, what plants should you buy, what are the easiest to grow. No fertilizers, No special care. these plants will grow like weeds anywhere Ludwigia natans ( repens ) Cardamine Lyrata Ceratopteris cornuta Myriophyllums all of them Limnophila aquatica Hygrophila polysperma...
www.fishforums.net
Plants help keep the water clear and give fish an area they feel safe and secure in which reduces stress and therefore illnesses. For the majority of tropical fish species I kind of consider it an essential part of the tank setup now.