I’m not saying that there should be any Glass shader, just trying to find the reason why someone thinks so. Like you said, in 4 seconds you can create your own Glass material and save it as a preset and there you go. No need to do that again later on. I think that because other render engines has some “special” glass shader, that is the reason people think Vray should have it also. They just dont realize, that there isn’t any special tricks going on. It’s just a standard material with few basic properties in right values.