I had a Pegasos for a while, e-uae worked pretty well but it was nowhere near as good as WinUAE.
TBH, I wasn't overly impressed with MorphOS. It looked nice and was responsive, but for it to be much use to me it needed a decent web browser (I'm too spoilt by Firefox) and a modern office suite (I'm spoilt by OpenOffice.org.) At least with a classic Amiga there's nostalgic value and native games. IMHO MorphOS is a great hobby OS with a lot of potential, but that's it. I lost interest in it once I got my new iMac.
(I know a lot of people here won't agree with me, but I'm just giving my opinion, not trying to start a flamewar.)