I don't like them either but not because of gas or bulb life. If I cared about pennies I wouldn't have lifted my truck. I don't know why I don't like them...I just don't...but there is a solution...turn them off. Wow. Problem solved. Without pulling a fuse or taking the bulbs out you can just turn your lights knob over to off and the DRLs go out until the next time you shift out of park. I do this sometimes. Sometimes I leave them running. I don't usually think about it until I see another Silverado without their DRL's on or if I pull up to a window front or up to another car and see the DRL's reflection. Then I turn them off. It's a vanity thing for me. I think my truck is sexier without them on. Shame on me maybe but to each their own.