There are places less friendly for light bulbs than others. Ceiling fans, handheld lights, garage door openers, heavy equipment, and others all will make your bulbs burn out way too soon. That's where a rough service light bulb from eLightBulbs will come in handy. The filament, normally a weak point, is reinforced and can handle conditions normal bulbs can't.
Safety coated light bulbs, on the other hand, offer you extra protection in the rare event that a bulb shatters. You can imagine that shatter resistant bulbs would be quite handy over a buffet full of food or on a swimming pool deck, for instance. If you've never seen a shattershield product, it is a standard light bulb, of most any shape, with a fairly thick coating of silicone or some other protective substance designed to keep pieces of the broken bulb contained inside the bulb.