I checked also and could not find any info on replacement cartridges, hoping they are in the $30 to $40 range and not the $60 to $70 range like some of the Phillip Norelco's.Has anyone seen prices on the replacement cartridges? I didn't see them listed anywhere and am curious to see what they will go for. I looked again and I swear the new 5, 6, & 7 have the same foil/blade cartridge with the 7 just being silver instead of black. All of the additional motions found in the 6 & 7 are functions of the piece the cartridge attaches too and not the cartridge itself. I am a little suspicious of the assembly used for all of those motions as well... One good drop on a tile floor and that 6 & 7 are probably shot. I firmly believe that I could have slammed my old series 7 against the wall and it would be fine, the series 3 and 9 can handle normal drops without a problem (I know lol).