do the other classes and buy yourself some hardware and learn on your own, there is a ton of free information that will help you
+1
As others have said, a certificate only shows that you had money to throw at a class. It's much more beneficial to get your own hardware (which you could do with $2,000 easily) and learn everything you can on your own. If you can sit down with a pen and paper and draw out a PLC program for a prospective employer, they don't care what kind of certificates you have. It's all about showing you know the job, and that can be done much more effectively with a portfolio and being able to program on the spot when asked.