I don't really care much for MGS games and I don't own a PS3 myself, but this really caught my eye as a work of great craftsmanship.
It was up for sale on ebay, along with a modified third-party controller and with a bunch of rare MGS4 merchandise, and has now sold for $17100 US dollars! (A portion goes to charity too)
Take a look at the auction before the photos disappear:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=130263869818
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It's nice but no way would I pay anything near that much for it!