Obvious it's mainstream. There are tons more to see money vise there in if you have the know how and
can spot a great market to serve.
For example two years since EbaumsWorld's founder Eric Bauman sold his site for $15 million CASH + a potential 52 million in bonus stocks.
What Tgp could get this kind of deal? even if they are generating
the kind of
money Ebaums did they will not see a 52 million potential bonus.
There's too many sharks in Mainstream contra Adult.
That said you can make money in both markets. But If you have solid
ideas and like to invent, I rather do it in Mainstream.