Why not change it up a little? You could always try black or brown too! Brown with blonde highlights might look nice. Or maybe keep it and see how it looks once it grows out. It might be better to dye it when it's longer. All based on opinion, though, just some ideas.
oh my gosh... it depends on if you are interested in this, but since your hair is so long, what if you did an ombre from dark chesnut brown to like sandy blonde/light blonde?? I personally think that would look super cool!!
Cut it off, and donate it to "Locks Of Love", then it would be easier, and cheaper to dye it if you want to. If you don't want to do that. okay. But, tell me what's wrong with your hair color? Sounds beautiful. Why would you want to change it?
Keep it! It's good to stay with your original hair color. Originality is where it's at. also you gotta think about the cost to actually do this and color your hair! it's gunna be over 200 bucks you know.