Front Bumper for a '99

I'm needing to replace the front bumper of my 99 Passat.
Online, I see one for $90, one for $150, one for $200, etc.
What would be the difference? They all seem to be the same.
Alternatively, is there an online location for used auto body parts?
Thanks.

you can try ebay.. or you may call these hotlines 1-888-251-1214 its from partstrain, check these bumper (http://www.partstrain.com/ShopByDepartment/Bumper), they have lots of parts, and its not that pricey..


Thanks very much Chester08. I'm going to check it out today. Checkyourdoover