Why do game devolopers still make PC exclusive games?

[kabhold]

Why do game devolopers still make PC exclusive games?

I love PC gaming a thousand times better than consoles.  But with piracy it makes no sense.  Also I was told (could be wrong) that porting to the 360 is easy from PC.  I understand some games (Crysis) could only be on the PS3 (maybe) but it makes no sense to me otherwise.  Financially speaking.  Please inform me of your opinions..

 

Thank you