After earnings release - the price movement is always an interesting thing to watch.  Visa has shown some good resistance around $73, so as the price was near, and the call had already lost half its value in half the time - I decided to go ahead and buy it back.  The move left me uncovered, but still feeling bullish, left me another opportunity to sell again when/if the price moved back up. 

I should probably look more into back spreads and using my margin, or simply rolling down my long, but I am ready to exit this position and come back and play again another day.