Is that 150 euro? For Hinotori?
I think I paid like 30 or 35 euro for that one, but that was more than 10 years ago.
Wow that's crazy, I should really consider selling my konami collection, I'll be a millionaire with these kind of prices 
But too bad, I can't part with them, they're too beautiful, hehe
Argon - yeah, I was surprised how high the asking prices in Ebay were. Did not expect to see starting from 250e and going still up... So, I decided to set it still a lot lower level than in Ebay... I can as well remember the lot lower level around 30-50 Euro for that, but that was around 10-20 years ago...
Also price level in Japan has risen a lot. You might still find one for cheaper from YAJ, but then there will be the handler fees, shipping inside Japan, shipping to your country and of course custom + VAT applied. In the end you will end up paying three numbers for the game anyway... But at least you have the fun of finding (several hours of browsing and trying to get it cheap)! 
