As opposed to relying solely on the model of offering a free service with the hope that buyers will purchase and/or upgrade later on. In a typical retail environment (and I would extend this to online retail AND services like TB), since there are no requirements, nor any financial incentive, for a potential buyer to become an actual buyer, there simply is the implied expectation on the part of the seller that customers will purchase something once they try it out. When that doesn't happen it can create a bad relationship. You get freeloader syndrome from buyers, and angry less-than-customer-friendly sellers. Sellers can try to restrict access, but that can in turn make potential customers feel resentful. Unless you're a telcom, angry customers mean no business.
The case of Costco/Samsclub is somewhat unique, in that they have the draw of providing such a wide range of goods and services. I know I have purchased things there that I normally would not have sought out elsewhere, because it just happened to be there. Anyone who hasn't done that at Costco is a liar. Period. It's the thing that makes them what they are. I'm not sure this can be applied directly to music gear. As wide ranging as music gear is, it's still all music gear. But I think the idea shouldn't be tossed aside, either. At some point retailers are going to have to find a way to adapt, or die off. Nothing to lose by trying bold approaches, IMO.
An add popped up on my facebook the other day for a DIY electronics retailer, doing a "project every month" club thingy. I'm intrigued to say the least. What about "bass/guitar/pedal/amp of the month"?
One major downside, of course, is that business becomes account-based. Gym memberships and vacation clubs are a perfect example of that model gone awry.
Just thinkin' aloud.