Edited sentence: 2000 bb's can be bought for $7 or so, whereas 2000 paintballs can run for $40.Airsoft bb's are also considerably cheaper than paintballs.Because of the smaller projectile, airsoft guns are generally far more accurate than paintball guns.Lastly is the potential lethality of a paintball if the pressure in the chamber is turned up.Paintball can only be played at fields because it leaves large marks, whereas airsoft can be played almost anywhere.Paintball guns are regarded as being ridiculous looking and having a lack of resemblence to real firearms, which has lead to some criticism.The lack of tournament-legal automatic fire in paintball is another advantage of airsoft, as well as the inefficiency of hopper systems paintball guns use