...
* Rewards points are ~1%.
* Using bitcoin at gyft.com gives you 3%.
Winner: BITCOIN.
And how many percent did Bitcoin fall JUST TODAY?

Saved for future reference.
You need a hand with the math?
I plan on living about 100 years, so looking at the daily ups/downs of any of my assets is just noise. My USD holdings drop several percentage points virtually every single year. For my bitcoin holdings, 2010, 2011, 2012, and 2013 have been amazing years. 2014 is an outlier. Talk to me again in 2024 and we'll compare USD to BTC.