What is the 50 state quarter collection 1999-2008 in 24-carat gold plated coins worth?

Technically the coins are altered an have no numismatic collectible value, the plating is NOT done by the US Mint and adds nothing to the value of the coins.

Most dealers (myself included) won't even make an offer on this stuff. As to value, I just did a search on EBay and it showed a winning bid of $52.00 for a set like this.