I've owned 5 falcons (EB, XH,AU, AUII, BA) and 2 Territorys so can probably comment.....
Running costs - they are cheap. Yes they can chew juice but 12l/100 vs say 8-9 that a 2nd hand hatch will make SFA difference if it's the 2nd car and doing 10k per annum. (You're a beancounter, you can work...