Rath on 28 October 2008
@HS. Currently too expensive for Nintendo to do that. I believe the cost of solid state memory is approximately 20 times as much as normal hard drives.
Hence the generation after next, in ~8 years time that will have fallen a lot.
This gives an idea of the prices.
http://www.newegg.com/Store/SubCategory.aspx?SubCategory=636&Category=15&name=Solid-State-Disks
