agreed, the keyboard forms part of the hardware chassis and after stripping out the hard wear you find that the keyboard has no screws but is actually sealed by a multitude of heat/melted pins, to gain access to the keyboard then you would have to un-melt all these pins and then somehow glue the keyboard to put it back together??
my own keyboard has partially stopped working due to a beer spillage which has affected 4 keys so after investigation i have had to buy a second hand unit/keyboard to replace it :-(