The price of some of these flight's you guys are quoting is mad
2.5k Thailand?

I paid just over £400 with Etihad and they supply a great service, infact looking now they are offering flights for £418 in Ocotober
Few years ago I'd have said the same when I was doing lots of long-haul flying to visit my girlfriend, and found I simply couldn't sleep in economy and night flights were simply hell.
I did 20 hrs traveling on 2hrs sleep on tiny cramped planes (Continental 767/757s), not fun at all.
When I was booking my recent flights to Bangkok it was about £900 for economy, £1650 for premium and £2.4k for business (BA), mad prices whichever way and no reward availability (and I had to go on X dates) so I went for the business option. No way I was doing 12hr night flights in economy, and equally I thought £1650 for premium was a rip-off but the business price wasn't too bad in comparison - only £375 extra each way for all the extra benefits - so you can see how premium is the most profitable cabin for airlines.
I had to work each side of my flights, work a bit on arrival, and also get as much holiday time as possible. So that's a good 3 days or so gained which as director of a time-sensitive company getting precious little time off was definitely worth £1500. And of course smugly sipping champers while the cattle boarded past us

(kidding)
Of course if I didn't have to work, and didn't care about being tired, I'd have put up with economy hoping I could get the extra legroom seats tho for me it doesn't matter much as I'm a shortie anyway and simply can't sleep on a plane unless I'm lying down. I've tried free booze, and sleeping pills just make me even more tired!
My brother is teasing me no end though as he's flying tin can airlines via Mumbai or somewhere but then it's only costing him £350 return so he has a point
