Well some business class tickets are insanely priced that's for sure, but you can find reasonably priced business class tickets in the middle of the summer when the biz is pretty much empty like you can get Oslo-New York for 2500 bucks. Also it seems like you can get Oslo-Beijing for that price on Aeroflot as well (I know only the prices from Norway).

And for domestic US flights Delta has some good prices on their socalled "first" (well the actual farerules on that fare are abit strange, which I am not going to dig into in this post). And then you got the FT way of doing things. If you got miles/status enough you upgrade or book award flights.