Amazon has cheap charging cables from 3rd party sellers:
Sorry I can't post a link. Here is the description
KHOMO Super Long 6ft (SIX Feet!) USB Data Charging Cable for Asus Eee Pad Transformer Prime TF101 TF201 (High Quality Rubberized Cable, not cheap Plastic)
$6 for 1 and $8 for 2
Sorry I can't post a link. Here is the description
KHOMO Super Long 6ft (SIX Feet!) USB Data Charging Cable for Asus Eee Pad Transformer Prime TF101 TF201 (High Quality Rubberized Cable, not cheap Plastic)
$6 for 1 and $8 for 2