Kilkrazy wrote: It also saves a lot of effort of painting the individual soldiers if you want to get some units finished quickly.
Very much so. I went a little crazy on these, and painted up 48 tortoises, which now make up about 95% of my Roman armies. and far outnumber all of my other ancient forces. It's a good thing the Romans enjoyed their civil wars so much, or I'd have nobody to fight them!