"I am the reason why we can't have nice things!"

Once upon a time, CX J fare HKG to North America would price out at 1.5X+ compared to starting one's trip from another port and transiting at HKG with a long layover both directions
The use(mis-use) of this netted me and my DW a savings of 150k HKD every year. We were not the only people doing this.