X-bit Labs has some information on the price oc Blu-ray disks media - they won't be cheap the first months.
The first disks will be available in Spring 2006. The single-layer 25GB version will cost $17.99 and the 50GB dual-layer ones will cost $42.99. The 25GB rewritable Blu-ray disk will cost $24.99 and the 50GB version $59.99.
Panasonic said its Blu-ray discs employ a number of exclusive technologies developed by the company, which, in addition to time and money required for research and development, also involved usage of production equipment not utilised previously, which are one of the main reasons why the discs cost significantly more compared to typical DVDs and HD DVDs. Still, such price premium is unlikely to be effective for long – Sony, the main driving force behind the Blu-ray – said that in case of mass production the significant price differences between the Blu-ray and other types of media would erode quickly.
The first PC Blu-ray burner from Pioneer will cost $995 and the first BD disk player for consumers will cost $1,800.