I did some price comparisons with some software/electronics between Costco and Best Buy. Thought I'd share these in case you are looking for any of these:

Turbotax Fed&State - $36.99(costco), $44.99 (best buy)
Turbotax Premier - $59.99 (costco), $74.99 (best buy)

Microsoft Office Student/Teacher - $124.79 (costco), $149.99 (best buy)
MS Office Standard upgrade - $198.88 (costco), $239.99 (best buy)
MS Office Pro upgrade - $271.22 (costco), $329.99 (best buy)

IPOD Nano - 2GB - $142.99 (costco), $149.99 (Best Buy)
IPOD - 80G - $339.99 (costco), $349 (Best Buy -on sale)