there was no reason to take a shot at yogi in this post. That's just silly.
You made some false assertions here, which I'm willing to address, because I've never seen a question like this before.
First off, both C and E esters can be formulated to whatever concentration you want them to be. There's nothing inherent in either ester that would make them, as you said, 200 and 250 mg/ml. I'm assuming you're speaking on what a particular source has to offer. I've seen both esters sold/made at concentrations of 400mg/ml, as an example. As you said, their molecular weights are essentially equal, so there isn't a good reason for them to brewed at different concentrations.
Also, 'cyp is American and Enth is European' is false. I don't know if you're talking about particular pharma brands or what, but most raws are coming from china, regardless of ester.
You may be correct in that the market for each product is potentially different in some parts of the world. I don't have knowledge on that, but it could explain the difference in cost. But there isn't a reason other than bro-science or superstition to justify paying more for one than the other. So yea, consumer bias and tradition may very well dictate prices in some places.
The source I'm familiar with sells these 2 products interchangeably though, no price difference, no concentration difference. So your experience is not universal.
Back to the Yogi thing. I've answered your questions to the best of my ability in good faith. If you take any more cheap shots at other members or myself, I will not offer my advice again. I hope you decide to act a little more decent to the folks here in the future.