Most of you guys never seen a milsim paintball game. Markers can look very realistic. I agree that airsoft guns are much more similar to the real thing but paintball is not bad at all. Personnally I'm a paintball marker and play milsim paintball, but I have an airsoft glock as a backup.
Visit this website www.milsimquebec.ca
and you will see a large community of milsim paintball player that love the sport and don't want to transfer to airsoft for many reasons.
Paintball and airsoft don't have to be in competition all the time. Both sport have their advantages and their disadvantages.