Canadian members can now find 303 Aerospace at Zellers. Cost is $14.95 Can which equals about $9.50 US. I only knew of it being available in some cycle shops before.
Granted 303 is more matte than Vinylex but I never found Vinylex to be greasy. Use your Vinylex on the tires and 303 on the interior. I don't think Vinylex is a poor product...it's just that a lot of the members of this forum prefer 303 for their interiors.