Yes, it is not. It's absurd to require all manufacturers to sell to any and all buyers. To do so would obligate the manufacturer to operate a distribution network to support N numbers of consumers, support those consumers (returns, warranties, tech support), comply with a variety of regulations that differ between consumers, retailers, and wholesalers. It's far more manageable to to sell through a distribution network to qualified buyers that are capable of implementing a full solution. Easier to manage a couple hundred customers than the mass of consumers.Rather an elitist and discriminatory approach for this day and age, is it not?
Where you can buy modules direct, once you add up all the parts to buy at retail you get to pretty much the same cost less shipping that you can buy a completed amp. Not seeing how that's elitist or discriminatory at all. It makes sense.