A real person to accept requests for functionality and find a plugin/extension that fits it. Twice now I've bought plugins that seemed like they were going to work based on the description only to find out they did not and that there was a different plugin that worked better (after submitting a ticket and grousing).
This could be someone who contracts out their service and gets a percentage of the sale or a small fee (once the user is happy).
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Zach Wiesman commented
I know this is a bit late, but our Pre-Sales Team is here to help you identify the extensions that we have that will best help you accomplish your needs!
If you have any questions about functionality and how to accomplish what you need, please fill out the form here: http://www.woothemes.com/contact-us/#sales-form - and we'll be happy to help! :D