It is cheaper, no necessary to buy something else, cleans very well. But how good it is for display ?
No, gasoline will dissolve many kinds of plastics and coatings, and you don't know exactly what's on the surface of your display. Use a clean, slightly damp cloth to clean PC displays. You can use a very small amount of mild detergent or specialized "display cleaner", but never spray directly onto a flatscreen display. Water gets under the bezel and never gets out, and seeps in between the layers of the flatscreen, making it ugly at best and shorting it out at worst.