There is a market for entry level bows that are cheaply made and functional. Perhaps this is a good thing, as it might attract more people to archery than would otherwise do it. There is also a market for original bows made by craftsmen, or artists in some cases. I would no more want a Zipper knockoff than I would want a Rolex knockoff. If I had the money to buy a Rolex, having a knockoff would be meaningless to me. If I wanted a cheap watch, I would buy an honestly made cheap watch, not one that looked like a more expensive one.
The same would be true for me with one of Chad's bowstrings, for a different reason. Bowstrings are inexpensive enough that why would I want to pay a few dollars less for something that may or may not be equivalent? The feeling I get from buying a custom made string from someone like Chad is that a person I can call and talk to is making a string from the best material he can find the best he knows how, yesterday, today and tomorrow. Once I find someone like that, whether he is my dentist, gardener, pool guy or hardware store owner, I will deal with him for the rest of my life without pricing alternatives every time I need something.
Foreign competition is sometimes scary, but not always bad. For example, in the 50's, we got lazy making cars. In the '60's and '70's, the Japanese came along and cleaned our clocks. Now, Ford, for example, has figured out how to make trucks that I prefer to buy over all foreign competition for the type of vehicle I want, and not just because they are made in the USA. The same is true for many other kinds of vehicles now made by US car makers. Foreign competition can also be morally bankrupt, too, when they ride roughshod over our patent and copyright laws, and that needs to be a factor we take into account when we determine on a national level how we are going to deal with those countries in trade and other aspects of life.
To have someone from a foreign country come here and look over our products because they think our products are well made and worthy of emulation is a tribute to those who made them. That visit might result in them giving us a wake up call some day, but that's life.