Put the tourpack on your SG and take some of the money you saved and buy the extended warranty you have been thinking about. In the long run that will add value to your bike when you honestly do want to sell it!
Yet another rational, well thought out, cool headed response. Something I'm obviously incapable of today! Smitty and Glider emphasized the same point - value added to your current bike. A Tour Pack and a warranty are definite selling points down the road.