kinetic weaponry is of greater use than say, a big laser, because a laser experiences what is known as thermal blooming. Essentially, due to heat density in the air, it dissipates. It can be alleviated with a big lasing device to keep energy density too low to allow it to bloom.
Additionally, lasers are also subject to the mediums they are lasing through. Drastic and numerous changes in atmospheric conditions between a laser's origin and its target are going to make the laser less effective.
A kinetic weapon suffers none of that, however the main problem with it is getting it to move fast enough to actually make it into space and do damage.
and yet vasari's bombardment lasers, which ransacks entire planets, seems to be immune to this ......
to the ppl who are citing real life science....this is a make belief game where we have shields, spaceships and phase travel, i dont think ground to space weapons are problems,
also, it is just plain fun.......for those of you who still have/play star wars EAW/FOC, dont tell me that u didnt enjoy disabling a star destroyer with the ion cannon, or blowing up a alliance frigate with the HVG.....