Take for example these attendances from 2010
Semi final 1st leg Indonesia v Philippines 80,000 +++
Semi final 2nd leg Philippines v Indonesia 80,000 +++
Final 1st leg Malaysia v Indonesia 85,000 +++
Final 2nd leg Indonesia v Malaysia 85,000 +++
That is more than 330,000 attending the four games! Crowd figures are approximate of course but based on those released at the time. And the Indonesia v Philippines semi final legs were both played in Jakarta.
This year the tournament will be held in Hanoi and Singapore...the draw will be held later this week!