6/16-6/23 car rental for $171 w/ fees from Sanford. good deal?

[IowaGirl]

I used that Wal Mart code for Alamo and had a rate for a compact for $128 and with fees it brought it up to around $171---Does that seem good?
How could I do better from Sanford Airport?
When I cross checked Alamo with the Magic Card discount it jumped to over $200 base rate, same time period.
Looks like Alamo, Avis, Dollar, Enterprise, Hertz and Thrifty are all onsite.
I am a Sam's Club member, but that was even higher than that Wal Mart code.

Any help would be appreciated!