The 35k was economy.
I wouldn't know Business class.
Flying to from Melbourne, Oz it's a 9 hour direct flight.
Just checked my current flight coming up.
7,500baht return direct.
One thing the Oz folk have over the UK and even moreso USA guys.
Flights so easy with low cost airline such as Jetstar.
Edit: the above fare is book when airline has their Sales.
For folk not retired I imagine the travel dates are far more restrictive.