Disclaimer: I am a former or actual partner/worker of some of the programs mentioned.
Now it is quite funny question is made about sexart.com of metart program, and half the people answering about x-art.com of x-cash program.
Guys first of all: question is about sexart.com and not x-art.com
Anyway x-art.com it was was before: beautyisdivine.com , and there was no sex or male actors, it was much like met-art or femjoy (at the time one would have said: he copied met-art, even if the first site of the genre it was domai.com - still online since 1997 and with no any sex).
In fact, beautyisdivine launched x-art, it had success (at least was promoted in every tgp featuring met-art and femjoy stuff), then femjoy launched joymii.com to have own "they fuck but it is art not porn" brand, then met-art launched sexart finally, and I would say with a bigger investment, and involving some real mainstream directors.
Then manwin launched babes.com "The best glamcore site on the net".
Is there some differencies with a bangbros gonzo thing or with a russian teensex thing? The girls (and guys) are not more pretty, you can find same prettyness if searching well even in a casualteensex.com (disclaimer: we provide cams to their program, but was just an example of non glamcore).
A main difference it is: music, moaning, language, in other words, the audio.
Another difference it is: backgrounds, slower motion (up to unrealistic slow, but hey this is art, if you want a real wild life documentary, go gonzo or casual teen sex), and list it can continue.
Someone is impressed by such a style and prefers it to gonzo or casual teen sex one. I would not be sure this is so "new" really, it is same to say, there was no any "pretentiously artistic" porn before. By the way it is porn, just one style of it.
Cam girls are of different styles too. Some cam girl are more gonzo (will jump on toys and say dirty words), while others will play the shy and romantic one who appreciate art and needs so long to just end up naked and will play different music in background, eventually Chopin piano concertos, while wear 1920 styled stuff. Each of these shows will get its different audience, it is called niches. It is still naked people who end up making the viewer horny, so the law will always call it porn, as well as the average person in street.
What is art? guys I got a degree in arts an an arts institute, I have my own paintings on walls of my office, and I am still unsure. Maybe no one of us ever made any art, or everyone of us. Putting the word ART in your brand and domain name, that is legit, does it make the its contents ART? You to decide