I think the budget component will be the determining factor to answer your question: if $$ is not an issue, then I think that the OEM package is a no brainer because the wheels look so much better than the cheapie sport edition ones.
On the other hand, as many have noted, the setup is really expensive... Especially if you factor in the cost of a bent wheel due to a pot hole.
I am myself in the same conundrum because I had a less then perfect experience with the sport edition where one of the wheels could never be balanced properly leading to vibration in the wheel.
Of course TireRack did an outstanding job and replaced the set to fix the problem but in the end, it was never perfect.
2008 M3 Coupé | BMW CCA Member