Yeah, they cost upwards of £150 in the uk. I remember about 5 years ago I decided against buying one at £27.50. Silly me.
They're critically endangered now - due to total overfishing before anybody knew just how few (in the wild) there were - and so no more can be caught untill the population regenerates.... hence the ridiculous pricetag.
There was an article in a recent edition of PFK on how to breed them. cant remember which issue, but it was within the last 3 months i think.