It depends on what position you are lifting from, and to...

For instance, I usually try to place my G70 in its' flight case on some chairs, so that I don't have to bend to the ground to lift it to the stand (and usually lever it down onto the chairs from a vertical position). Same for packing it away. I rarely EVER find myself dead lifting the whole thing for any reason.

Yet many of us have to get 50 lbs.+ speakers up on a speaker stand...

Weight is weight. How you manage it is the trick...