>> Doesn't this make the marketing tied to sales point very close to moot? <<

This is correct. Sales of VFP are measured by both VFP stand alone full product sales, VFP upgrades, and MSDN Subscriptions as per obtained for VFP as the primary tool. We know the percentage of MSDN Subscription sales tied to customers obtaining it mainly for VFP usage, and also the percentage of VFP customers using MSDN Subscriptions.