I am looking for a course to help me with VCP5-DCV certification. Does one exist, or do I have to pay a ridiculous $3500 course fee just to learn basic VMware ?
You want to look at HOL-SDC-1410, which is currently called "What's New in vSphere 6"
This is our "VMware 101" lab that also contains a section on the vSphere 6 content. However, all of the other content that covers the basics in this lab is consistent with vSphere 5.5.
Be aware that obtaining a VCP certification carries the requirement of attending the class, though.
Enjoy your lab,