@Kim_Bottu … Virtually Gung Ho
If you are not already VCP-DCV certified there is still some time left to become VCP-DCV certified using the vSphere 5.5 track. This will get you certified for another 2 years.
Within those two years you can get VCP-DCV certified for vSphere 6.0 without having to schedule an official course. All you have to do is to pass the exam.
vSphere 6.0 certification will not only be harder to achieve (because there is more to study) but it is… well just read what Chris Wahl “rants” about it : http://wahlnetwork.com/2015/02/03/vsphere-6-certs