CMB-SIN-NRT-SIN-LHR-DXB-LHR-LAX-SJO-LAX-MIA-ANC-DFW-EZE-CCS-SCL-IPC-SCL-JFK-HKG-CMB

Appears to be valid and offers 74,000 miles over four continents.

I'm debating whether to take this DONE4 or my LONE5 from my other thread. Both include destinations of overall rather equal interest, but the Biz class will "cost" me about $1,500 more (after factoring actual $ plus value of miles earned).

Seems like a no-brainer for 74,000 miles in Biz vs Coach but I'm concerned that it will spoil me for flying coach in the future which is what I always fly. I wouldn't ever buy a single J/F ticket with my own $ but the RTW in Biz class is too good of a deal...