the biggest sharepoint value is

   When you have Sharepoint and your partners also (with a very very low investment, mainly a windows server 2003 with wss) you're able to integrate more your unstructured process at very low cost, and share information with excel or access or infopath in a simple, centralized, governable way. Then, if you have special needs, you can always use Groove and have the complete stack.

Hub & Spoke: when you have few resources you can create an Hub an distribuite benefits.

my 2€c