Why are Sotaroas cheaper than Toxotai?

[Lysimachos]

An interesting thing in context with size is that, opposed to popular belief, the size of people has not always increased. Findings of sceletons in central and northern europe show that the average size has actually decreased from antiquity to the middle ages and later increased again. The most logical explanation is the diet. The more populated and the more agrarian a society becomes, the more has it to rely on the output of its agriculture instead. So while an agricultural society can support more eaters, the quality of its diet according to modern nutritional science is worse than the mixed diet on which a less agricultural society sustains. Result of a strong hunting culture is a more protein rich diet, which in turn enables more growth and thus physical strength.
On this grounds, I think it is highly plausible that in ancient times the average member of a mixed hunter-farmer-community possessed indeed a greater physical strength than the average member of a mostly agricultural community.
This only swings around once more advanced methods of breeding and organisation of agriculture make meat more readily available to the public outside the upper classes.

Edit: Well, this really becomes offtopic, so: sorry