Might get a better deal by avoiding sales tax.
For example, use the UR shopping mall to buy via jr.com
-Sales tax only in NY
-3 bonus points/dollar
-2% JR Loyalty rewards (store credit to use after 30 days)
And the math for a 13" MBA/6% tax because I'm bored:
APPLE $1199 + 6% tax = $1270.94 - 5% Discover = $1207.39
JR $1159.95 - 2% JR = $1136.75 - min value of 4640 UR points @ 1 cent each = $1090.35