Upload & Sell: Off
Is there an upgrade price? I wouldn't mind trying the Analog Efex, but I'm not going to spend another $149 for it.
Since Google dropped the price to $149 for the buddle this is the best deal in photo editting. I use Silver Efex constantly.
What version to you have? When Google bought them, I had and old version and had to pay $149 for the upgrade. I can't remember now what I was after that led me to upgrade then. I think I wanted to add a plugin, but I can't remember which. It might have been Color Efex Pro, although I had bought the bundle. The recent inclusion of Analog Efex was free.
In your case, if you're happy with the tools you have, I wouldn't upgrade just for Analog Efex.