Windchill Document Manager vs Sharepoint

Hello

is there any one who has evaluated Sharepoint vs Windchill for document management for a pure capability point of view.

eg. Windchill can pass parameters directly into Word, I was told by a sharepoint consultant this is not possible.

Same thing with document structure.

I like to call sharepoint a file manager or an enhanced hard drive. Nonetheless, I have hard time to get Sharepoint users to accept that Windchill is easier, simplier more powerful.

Sometimes the argument goes to. "I do not need to buy new licences for new users for Sharepoint but I would need to for Windchill, so even if there are advantages it is not worth the cost"....

Is there anyone who has close a Sharepoint site to migrate to Windchill ? What was the argument for this ?

I am trying to sell Windchill has something much more than just supporting engineering. Managing documentation is an activity for all departments and functions. But sales, marketing, quality are happy with their own "developed" systems. See the picture ?

Any feedback welcome. Thank you