Without knowing your particular situation, it is hard to say if it is worthwhile. But be careful what you are doing. Changing arm wire is a one way street. If you don't like the result, it is very difficult to change back. So unless you have an old arm or you know the arm wire has degraded, you might want to find someone who has the wire changed and listen to the result first. Quite often in audio, different isn't always better, and change doesn't always mean upgrade.