I'd imagine the fact that a lot of his production takes place in Italy is a major factor, but who knows. Probably easier to live there and keep on top of things than fly over several times a year. (there may be an added financial bonus if it's an Italian company, etc., but no clue really).
@mikegnthensome what's the reasoning for no sleeve lining on the Rover (other than maybe cost?). I tried one on and the fabric is thin enough that the sleeves were a noticeably different color due to this. Just doesn't make sense to me.
Also took a chance on the henleys and have the same issue that others have reported - much smaller than the size charts. Also, really strange, but mine almost flares out at the cuffs - they're much wider than the forearm.