erm all seems a bit suspect to me, any chance that the seller selling it at the lowest prices is you? the fact that the seller has no rating and has "just lauched" on the site makes a bit suspect, also says that it is an unwanted gift which would suggest they only have 1 so unless you have brought from someone that is not the cheapest seller then surely that copy has gone???
Perosnally would never buy off amazon market place if the seller has no feedback at all.
If the seller is not you than sorry for suggesting if it is you then this is not the right place to advertise.