[mayukh]

Its the bane of quarterly capitalism - once public, management focus is diverted to managing earnings and increased amount of transparency needs to be provided for the company's internal operations.

Companies would prefer to stay private (and away from the limelight) while they're still figuring out product/market fit etc

[paul_f]

You really should find product-market fit before you raise any money at all. However, it seems Uber has found it.