500 pounds sounds like a lot, when you're used to the feather weight KTM dirt bikes.
In comparison to other bikes, it starts looking light. I had an `09 KLX250 supermoto, it was a little over 300 pounds. I got it for my wife and she made a comment about it being a light bike - the I explained that my KTM450 weighed 25 pounds less.
The other big sport touring bikes are heavy suckers too. Far heavier than the ADV. I think it was said best, as long as it's on 2 wheels, it'll feel light.