My favorite LBS would do a stem swap on a new bike sales for no fee if the stem being swapped wasn't damaged. Additionally, they would be highly unlikely to let someone out the door with a new bike without at least a minimal fitting.
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A conclusion is the place where you got tired of thinking. - S. Wright
Favorite rides in the stable: Indy Fab CJ Ti - Colnago MXL - S-Works Roubaix - Habanero Team Issue - Jamis Eclipse carbon/831