When LEDs become brighter, more efficient than CFLs and the price drops enough people will start using them.
But the light going 'plink' when we first switch it on, is an essential part of the Light Bulb Experience, and enjoyed by the whole of mankind. Until the manufacturers can design an LED that does that, it won't be real.
An LED room lamp that doesn't fail is also bad news. Once the market is saturated, the only way to maintain sales of LED room lamps would be to be building more and more buildings to take them, totally the opposite of reducing carbon foot print.
And most importantly, if bulbs never failed, what will happen to all the "Light Bulb" jokes?
PS, rectifier and LEDs sounds to me a best scheme. Maybe Luxeon LED can be used