Wow, that's a great question!, My professional answer is simply NO... the life is diminished.. very similar to a motor starting.. it has a higher draw to reach a point of continual stability. A better example would be the tungsten filament of our friend the old fasioned light bulb., as motor loads are not recommended or are very sufficient when it comes to power inverting....in DC a mere light WILL burn for hours and days, but a vacuum cleaner or a space heater will give you only a murmur of a turn or seconds of heat.... It is simply an issue of wear and tear........Let's simply consider the human heart, wouldn't we live longer if instead of beating it just stayed on?