Hey spotshooter, you made me curious so I bopped over to Griz just now... the 3-phase lathe that costs twice as much is a 16x40 and also weighs twice as much as the 14x40. Now it makes sense.
I was planning on buying an 0509G myself so I'm not anti-Grizzly by any stretch. With some crucial help from Dennis I found an arguably superior machine for half the money and with a nudge from him... a dope-slap as it were, grin... I snagged it a couple months ago.