thats a difference. not necessarily in the amount of marketting, but the type.
Apple believed that the Mac pro would sell well because it was an Apple mac pro, one of the most beloved mac's in their lineup.
For the most part, the features and what not sell itself. (or so they probably expect). they don't have to tell yoU "buy this!"
I'm noticing in the whole lead up to the Apple Watch, Unlike previous devices, Apple really doesn't have a defining marketing campaign telling you why you want this. Something distinctfully different than previous marketing ventures.
With most of their previous products, that sold themselves, all Apple had to do is tell you they exist. We were able to determine easily how such a device would fit in. Yes, yes, There were enough naysayers during the iPhone and iPad launch. But they ate crow. Each of these devices fit some form of known market need.
The Apple Watch? and for the most part, Luxury Wearables seem to have a problem selling themselves. Utlimately, Apple is in the position again having to convince people WHY the Apple watch will fit in. Tim Cook has said a few times that it will "change your life", yet Apple hasn't been able in any way describe just how it will. What features will?
Which leads to needing a different style of marketing than previous. Hence, aiming advertising outside fo the tech realm and aiming it at "vogue" style users. They're trying to position the Apple Watch as jewellery luxury item first, and smartwatch 2nd.