why cant xbox 360 make games for the hardcore gaming fans

i know xbox 360 has all different types of consoles. some for casual, hardcore etc.....

we all know that gmes are being made for the xbox 360 where the develeoprs dont use the harddrive.

now why cant game developers make a game just for the hardcore xbox 360 fans.

i mean if u played mass effect... u can see how much loading time is required. i think the stupid core system stuffs the hardcore fans