I'm weighing my options between getting a Razr or a V551. The V551 has a docking cradle and a better user experience, but the Razr is a cooler phone. The Razr is also $130 more. How much does the V551 cradle cost and is it worth it?

 

It is more than just a cradle. Also an eject box and some trim pieces.

See below for 6er (some parts including cradle are same to 5 series) - but cost is typical.

Try to buy parts at discount and then turn over to service to install.

84 21 0 307 726 Snap in adapter (specific to Motorola v6xx, v5xx phones) ~ 96.00
51 16 7 139 000 Support ~ $109.00 (Option 644 - probably not for 5 series)
84 21 6 946 075 Eject box ~ $130.00 (not the same eject box used in the v60 CPT9000 mobile phone configuration).

Part Numbers needed to complete (not needed for functionality)
51 16 1 964 677 8-bolt ~ $ 00.34 (not installed yet on mine)
51 16 7 113 151 Base ~ $ 34.21 (not installed yet)
51 16 7 113 150 Cover ~ $ 8.16 (not installed yet)

Labor was about 1.5 - 2 hours at most.

Do a search in this forum for the cradle part number above and u should find more info on specific 5er installs.