Absolutely. I don't take anything because of what it teaches. Some things taught will not even be on an exam which is true of ASNT, ICC, AWS or any other class/exam I have taken. That doesn't mean it isn't useful information or at least interesting information. To me anyway but my wife says I'm an information sponge. I may forget a lot of what I read but I am always reading something. Just ask people who work around me.
One needs to concentrate upon certs which will promote the job opportunities within the segment of the industry they wish to be involved in. You cannot be an expert at everything. I get a kick out of guys who have their soils certs, API certs, concrete certs, welding certs, 2 or 3 ASNT certs, bolting certs (usually IBC), Fireproofing, NACE certs, and others. When do they take all those exams to keep current and how much money does it take.
I have enough without trying to get into every part of the building.
He Is In Control, Have a Great Day, Brent