Nope, it's a lot cheaper, a lot faster and a lot more convenient most of the time 
It is cheaper though it does not prove anything
It might be faster but what for?
Convenient it is... I 've been reporting sound lags on A500 games, on E-UAE, WinUAE or even AmigaForever Player.
I mean c'mon! Emulation is always an emulation, pretending to be the real thing. So if you want the real thing, get yourself one. And if you need emulation "not real", just use it cheaply, in terms of effects also. If I was faced with the choice of such, I wouldn't be considering options at all.