I guess it depends on server for this one.

On Alliance you would be trying to farm untags 1/12 your size at 40a per hit, doing 30 hits a day, and 3 turns per attack is a killer.

On Primary, you do so little hits everyday (3 to 5) that Demos probably edge out very sightly in land gain, and only if you actually got significantly more strat tech. I mean, if you're telling me your 110% strat is now going to be 111% because you're demo, sure you gain 1% more land, but if you grabbed 2000a that day, that's just 20 more acres. On the grand scheme of things, it really isn't any better at all.

And honestly, if I saved 3 turns grabbing that day in 3 attacks compared to a Demo by being a Fasc, I would think I can just explore that 3 extra turns for 18a.

Also, I'll point out that a Fasc can build a few rigs for oil if oil goes past $300 or $500. :P