Items are being listed, and selling, for up to $250. Of course, most come in far cheaper than that.
No matter how you feel about the real money auction house that's been implemented in 'Diablo 3,' there's no argument that it's going to have an impact on gaming going forward. Whether that impact is good or bad we'll have to see.
Most items seem to be sitting in the $1-$5 range, but there are items that have been listed – and are reportedly selling – for prices up to $250. Gold is not currently available at auction.