Well, that's not really the case. I have done a few maple wines (To me it must have honey to be an Acerglyn) 1.5 gal of maple and water up to 5 gal gives you an SG around 1.100.
Honey is around 78% sugar, Maple is (by law here in VT) 66.9% sugar. So, not the same, but pretty darn close.
I...