Sure, but I think that the Reconquista did create the mindset that enabled the conquest of the New World. That certitude that "God is On Our Side", and the missionary sense that drove them to bring Indian souls to the church (even if it killed them) I would argue can be seen as a direct legacy of the recent success of the Reconquista. Here's one website that makes the same point in a discussion of Columbus' first letter back to Ferdinand and Isabella:
"The conjunction of Verardus's panegyric with Columbus's first letter can perhaps be explained by reference to the epigram added at the end of the letter in its Latin translation by the bishop of Monte Peloso (at left). The crisis facing the Spanish monarchy was evident. The reconquista was over. Spanish society, which had evolved to support many substantial militant christian orders, was in danger of collapsing unless a new release could be found for the military. And, just by chance, just after Granada is conquered, Columbus returns with news of a rich and fertile land filled with heathans who are ripe for conversion and who lack the attributes of civilization."
http://www.usm.maine.edu/~maps/columbus/production.html
While I was composing my response to Alter Kaker (see post #23), you beat me to the punch and said basically the same thing. I think we are in agreement.