Because guns and explosions; and Denise Richards and Dina Meyer were hot.

I don't know how people don't realize being robocop would be terrifying and these movies are more akin to horror. Your consciousness trapped in a machine, your body parts stripped away leaving you with nothing but a circulatory system. Castration to the highest degree where your only sense of touch is limited to a few scraps of skin stretched across a metal frame. You're primal urges to eat drink and breath all suppressed since you're barely even human. In the new robocop most of your brain has been replaced with a cybernetic brain, you wouldnt even know if you were ever human at all. I'm sorry guys nothing about robocop is appealing.

This was my first thought. Maybe if you've only seen either movie as a child, I guess...

Starship troopers ain't satire. There is no better strategic option than send millions of soldiers under equiped into their certain death. I mean they could bomb the planets from orbit, but that wouldn't be fair to the bugs, would it?