received a mail to upgrade to business class on QR181 DOH to VIE at the soft price of 23.667THB, around 640 euros!
Thus 23.667x4 segments would equal a supplement of 94.668B on top of economy ticket I paid, are they out of their mind, is anyone paying such a premium to enjoy J class?

Note they have a promotion running for 1 sep to 29 feb 2016 travel in J at 63.000THB.
I am flying next week, at 63K B I would have booked J class, 3 weeks ago the Qflash promo was even 56K, but my wife broke an arm and it was unclear then when I could travel. Thus I will stick to Y class for once, A380 and B787, I guess i will survive?

Well I will reach silver landing VIE and hit gold in october after next planned trip in J and maybe get the 100k bonus miles for the globetrotter promotion...