Pretty sure this is largely related to the industry and type of position you're applying for, and whether it's a big or small company.

At a big company with known positions (e.g. junior, mid-range, and senior devs), salaries for each of those positions may fall within a narrow range with little to no leeway. At a smaller company, where roles are more amorphous, starting salary may span a huge range depending on your specific qualifications, how their business is going, etc.