1) almost no one has multiple Masters and even fewer multiple PhDs. 2) A degree tells a potential employer you have knowledge in a field and the persistence to

1) almost no one has multiple Masters and even fewer multiple PhDs. 2) A degree tells a potential employer you have knowledge in a field and the persistence to stick with a project/goal for 4-6 years. The latter possibly being more important than the former. 3) Focus on persistence and experience in particular technology or projects is definitely a good boost.