Is going Adult still the best advice for newbie internet marketers

[Steve]

I started internet marketing in 1999. At the time I went into adult as it offered by far the best chance to earn good money in a reasonable period of time. Since then I have branched into mainstram marketing. Recently a couple of friends of mine have asked me advice on breaking into internet marketing with adult. However, at this point I'm not sure adult is the best way to go for a newbie given the opportunities that now exist in the mainstream area.

What do you think? Is adult still the best avenue for newbies?

Thanks,
Steve