Where are you looking? Performance-PCs has them for $12, the 1/2" pair, which means $6 each and $9 the 3/8" pair, or $4.50 each:
http://www.performance-pcs.com/catal...ducts_id=21278
http://www.performance-pcs.com/catal...ducts_id=21277
The pricing pretty good for these Koolance, I use 3/8", I wouldn't use compression fittings with 1/2" though.
The bits-power are more expensive, about $10 each, so I agree there, it's expensive.
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