Both schools have become considerably more mainstream since their formative years.
The transportation form has become so mainstream, it's no longer a question whether or not to use it.
"But in the last few years, wildlife habitats have become much more mainstream."
But today the idea of green homebuilding is becoming more mainstream.
For the last 10 years, metal has become more mainstream in this nation.
"A certain climate had been created over the last few years, and it resulted in the whole issue becoming more mainstream."
"Muslims can now feel themselves becoming a little more mainstream," he said.
The attacks on the post-1937 view of the Constitution are becoming more mainstream among Republicans.
Part of the reason, he added, is because "the adult-entertainment industry has become very mainstream."
I know apple has become very mainstream these days, but they still have professional users with professional needs.