Can anyone explain the differences between these two saws. I mean besides the obvious stuff like motor size and re-saw height. The G0636X weighs nearly twice the G0513X2 (620lbs vs 352lbs). The motor size difference doesn't account for 268lbs. The G0636X even weighs more than the G0531 which is a 5hp, 21" saw.

IMHO the Grizzly site doesn't really do much to sell the G0636X. I would like to see a better explanation of why this saw is "actually better than any bandsaw on the market in its size range."