Overpriced? Hardly, when you factor in the reputation, the cost of development and 2 year warranty and the no-questions asked manufacturer's warranty on the JHA IEMs. How much does it worth to you to have that support behind the product you're buying? Every high-end custom IEM manufacturer charges around the same amount for a comparable model with a couple hundred $$ difference. Does that worth taking a chance on an unknown manufacturer with an unproven product? Not for me, but I live in the US.
I also find that comment funny because you did invest in a $300+ TWag cable. So, paying $1,149 for a high-end pair of customs is overpriced but the $300 cable is OK. I personally believe they are both wonderful products and market priced, as there are enough people out there buying them, myself included. Would I like to pay less? Sure, but not at the cost of compromising on quality.
I hope this experiment works out for you and realized some savings while getting the quality product you expect. Looking forward reading your upcoming review.