Because it’s probably well made or at least the percentages and carrier. I ve heard lately about the importance or the oil and of course the alcohol and the rest of the “cook” it started with some you tube channels I never watch but did because they caught my eye. I guess some solvents and some other things like exact amount of BB and B A is giving guys a lot of Pain when shooting. Pip caused by guacol and some things have higher amts so they can get higher mgs in per cc. I never looked into that side of things. I rather be the customer but I’ve had a few things that I chalked up as scar tissue but maybe not. Man, I’ve had some flare ups good too hear uniform is right on that account.