Actually I think the location and size currently in use is ideal, especially for those who are not selling the names. For example, instead of a typical for sale message I am cutomizing it by saying "Any inquiries, issues or questions.......Please contact (email addr)."
I think that line and size is very good and at same time my wording does not in any way preclude a possible purchase inquiry. Also a safeguard against someone alleging bad faith due to the domain advertised as listed for sale on the page.