If you have $100 burning a hole in your pocket, go ahead. As for me, I'd keep it and spend it on gas, or some other component in your system that when upgraded will actually net you a noticable performance gain.
Honestly my first reaction was "is this man insane?" Of course, now I realize not everyone is as poor as I am, and I also don't know what your requirements are. But I find it hard to think of any requirement that makes this upgrade path anywhere close to necessary, much less logical at all.