The other thing with the Big Bash is that from a marketing point of view it's missing its most marketable asset, which is the Australian Test players. There's 2 reasons why guys like Warne, Hayden and MacGill are big draws - the first is that these guys were actually good, but the second reason is that all the current big draws - the likes of Hussey, Clarke, Ponting etc - will all be playing Test cricket, so guys like Warne, even at 42, are a bigger draw than the random Shield players who'll make up the rosters of the franchises.
International contests are still the marquee events in cricket and it seems utterly insane to pit a T20 league up in direct competition with one of the biggest series in the international calendar. It's not a problem that's going to go away for the Big Bash - looking at the FTP program, the only gaps in the calendar during the Australian summer (I'm assuming April isn't part of the cricket season) are:
1 week at the start of March 2013 which comes between the end of the OD leg of an Ashes summer and a tour to South Africa
1 week in February 2015 which comes inbetween a tri-series with England and India and the start of the World Cup
The last week in October 2015, which is inbetween a tour of Bangladesh and hosting New Zealand
2 weeks at the end of November 2016 between the end of a home series vs South Africa and a home series vs Pakistan
1 week at the end of March 2017 after a tour of India
1 week at the start of November 2017 between a tour of India and the start of a home Ashes summer
1 week in February 2018 between an away Chappell-Hadlee series and a tour of South Africa
The last 3 weeks of March 2019
3 weeks in February 2020 between a home ODI series vs India and a tour of South Africa.
Unless Cricket Australia has a significant rethink about scheduling, I can't see how the Big Bash is going to be a success with the cricketing public.