I think it was Darren Berry who mentioned in an article that lack of TV coverage is a good way to kill off your sport. I agree - I think with every series that Nine gives away to Fox a little bit of Australian cricket dies.
I'm a basketballer and you can see how much basketball died as a sport when it went off free to air TV here in Aus. Yes the hardcore still play and Ten/ONE is doing a good job of it now, but we struggled to find any new players in our local competition for a while, and especially kids, when they never see the sport on TV.
Of course this situation is different, I'm pretty sure Ten/One would love to show the IPL if their lawyers would let them.