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Wow, any other exotic brands and designs out there ?
Actually I am bringing this up because I just ordered some engineering thermoplastics for making some custom made blocks. Not proud at all to copy someone's else design but the Karver blocks are just simply impressive. They are expensive because of the use of PEEK thermoplastic.

No, PEEK is expensive but still only explains a fraction of the price tag.
http://en.wikipedia.org/wiki/PEEK
My work experience lines up well with the price found in Wikipedia. I think you have to get used to the thought that the marine industry is fleecing us.

/Martin