Now in regard to the suboctave pedal market does 3 Leaf Audio have sufficient market power? No. In regard to the Octabvre MKIII market.? Yes. So it really comes down to how the market is defined and that's something only the FTC can decide. (I suspect they'd decide that it's not possible to have a monopoly on one's own unique product so no antitrust laws have been violated.)
A market of a product could be defined as a market of substitutes, an other item that does the same thing. The Octabvre is an octaver. Any other octaver is a substitute. No other octaver maker is harmed because 3 Leaf sold 50 octaver with a preamp. It makes no sense to me. That's quite the opposite, that makes acquiring the 3 Leaf octavers harder since they're much more expensive than the competitor's.
Additionally, the example depicted 2 goods/services : A) the medicine (for which the drug maker has a monopoly) B) the blood monitoring service.
The issue arises with competitors of service B that see their service sold with a medicine that consumers cannot pass on.
A perfect analogy would thus compare service B with the preamp. People need A and buys A + B. So the issue would arise with preamp makers. Again, are preamp makers harmed because 50 preamps were sold in a bundle ? What's 50 units at industrial levels ..
Note that I am not defending anyone here. Simply questioning the legal approach to this question that appears to make no sense.
Did I miss something? Most, if not all, criticism in this thread has not concerned the price; it has targeted the tied sale: being forced to buy a product for which they have no desire or need.
Then if paying $550 is not an issue, consider the Octabvre is $550 and you get a free preamp, or email Spencer and ask not to have a preamp in the bundle.
If a producer is free to charge whatever they want for a product/service, but is not free to bundle items together, then they just have to rise the price... Except in the latter example, you don't get a secondary item to recoup some cash. That's a far worse option to me.