This should be a pretty interesting topic especially for this community, since we are somewhat better informed than the population at large about what goes on under the hood, while there may be some temptation to think we know more than we do.
First a little discussion about brands and brand management. This is an extension of the old "you can't judge a book by it's cover", while we in fact routinely can and do. If we recognize and like other books we've read from the same author, that is effectively a brand that we will trust to deliver a consistent product, until we are disappointed by that brand. For unknown authors (brands) we may judge the book by the cleverness of cover artwork, reviews and touts from other authors.
In the larger markets there are companies who have been obscenely successful mimicking the look and feature set of established category leading products. This works as a business model as long as you stay on the right side of the legal line regarding IP, because product is delivered very cost effectively, with a proven feature set, and some degree of "borrowed" good will.
Attempting to do this with low volume esoteric products has several pitfalls. If the customer is buying an XYZ so he can brag about owning a XYZ, it doesn't matter if you used gold solder inside, it won't satisfy that need unless you dishonestly masquerade as someone you're not.
If some esoteric product has established a following because of what it does uniquely, you can't do it better and still be the same. To be "the same but better" requires establishing yourself as a different brand and merchandising your difference. Advertising and promotion are unfortunate costs to establish any brand, not to mention having a track record which takes time.
A simple low volume knock off of a proven design without some merchandising reason to exist isn't likely to be valued very highly. People always want to save money but aren't likely to think down from the market price of the very expensive esoteric model, but often up from more mundane generic solutions.
If you want to build stuff for money, try to make something unique that is your own creation.. It can stand on the shoulders of those before you, but take it to another level. Good for the money doesn't generally work in the high end.... and there's already very effective copy cats in the low end.
JR