The biggest concern I would have is having sufficient computer power to actually load these as well as populate them. A gig of stuff? That's a lot of polygons, even if it means all the extras. It sounds like stripped down, we'd still be looking at half a gig, and that would put demands on even the most extensive system. Maybe scaling them back and selling them in sections (a grand hall here, an armory there) would allow the flexibility as well as the price factor. I'm sure people here would love high-rez, high-detailed architecture, but as several have pointed out, price becomes an issue.