Yes, but a tech with 10 years of experience who is also an ASE Master tech is worth more than a tech with just 10 years of experience. Even if the ASE Tech is a complete fucking moron. Your value is the sum of your experience and qualifications.
As with anything else, you ideally want to have more than the next guy if at all possible.
Who cares if they give you a raise?
The idea is to invest in yourself proactively, not re-actively.
God forbid you lose this job, would be easier to secure employment with a rack of certs under your belt, and it looks better to future employers.