I have Platinum JG package myself and I am not planning on upgrading to any of the packages because very few, if any, of the books in the new packages are a must-have for me, especially at that price.
It would be ideal if I could purchase the features, without the extra books, for a reasonable price.
That said, what do you think is a fair price for the data sets and the new features?
I'd say $350.
EDIT: It looks like Logos will be offering exactly what I'm looking for in the Minimum Crossgrade for under $100... wow.. that's way less than what I was willing to pay.
http://community.logos.com/forums/t/58259.aspx