I don't think some of these people have ever had a pcb made at the factory before. Hard gold finish does not just add a little bit of cost to the product it adds quite a significant amount. Unless you were moving huge amounts of these things which I can't imagine would be the case for something like this then you need to charge prices like this to cover costs and make a bit of money alsoI designed these kits. They didn't materialize out of thin-air. These things take both time and money to produce. I've also given it away freely for anyone to use, make and even sell.
I don't understand how anyone could say that I'm "ripping" anyone off. I'm sorry I don't sell them for $0.35 a piece. Unfortunately, I need to be able to recoup my costs and make a living off of the things that I make.