This is double-great advice. It's completely obvious once mentioned but not something that may have occurred of the top of ones head. Thank-you for posting.
It's strange because 400a service will probably NOT ever be needed, but the cost difference from 100-200 and 100-400 is basically nothing.
You can also get a separate meter installed instead or alongside, this can be useful it the property could be dual purpose (think: duplex, house + machine shop, etc). This can increase costs because of double baseline but it can also reduce costs because of double "low tier" - depends on the market.
