Even if some people can experience psychedelic states through extensive meditation, that doesn't make their experience intrinsically better. They're chasing the same experience as someone who experiments with psychedelic drugs, but there always seems to be an irritating sense of smug superiority from people who do meditate.
Taking drug to experience the state is like throwing yourself onto the source code without any learning/experience to fix a bug. You might end up fixing the bug by accident in some cases, but it can very well lead to other failures which you couldn't imagine with virtually zero experience in programming. More often you end up having bad experiences In both and frustration thereafter.
It also tends to go along with a sense of being on a cosmic path toward truth, beauty, and enlightenment...
You could meditate alone for a thousand lifetimes and not experience love. Saying you can endogenously experience psychedelic states by meditation or Kundalini yoga sounds nice and ideal, but it is only partially true. It can only show you glimpses.
Whatever this world is, it is here for us to enjoy. Proclaiming the answer to enlightement is living an ascetic life without luxury items, smart attractive people or drugs of any kind is silly.
"Man suffers only because he takes seriously what the gods made for fun." - Alan Watts
(Obviously Osho didn't live an ascetic life. He meditated enough not to need MDMA but not Rolls-Royces.)