In the Nebula world I have always seen part of my buying decisions as support for the idea and the developers (though I still think Nebula could and should take a more healthy path but that is a different topic). Re-selling libraries would be the same like retracting this support and therefore is out of question for me.
Especially saying "the new EQ of this and that developer is so good that I will sell all his other products because I don't need them any more" would be like punishing him for his good work without considering the long way to this quality.
If somebody says "then I will try more before I buy" ... that is reccommendeable anyways.
Easier said than done sir. at these prices and with this quality we all want to dive in face first. Especially when you see brochures selling the hardware for $2000 and up. Then add in the fact that the differences are just about 90-95 percent equal... Easier said than done. I do think that people of this community should take more responsibility for there lustful buying actions. I already have so I will not sell the $10-$20 great presets that I do not use.