Continued education courses

I'm curious if anyone has taken the pulmonary disease educator course by the AARC or the COPD educator course by the ALA. It doesn't give you any extra credentials but it seemed like it could be useful.

My work compensates me for it so money isn't an issue. Just more if you felt like it was helpful in any way.

I've been an RT for 11 years and work in rehab with mostly COPD patients.