I thought it was necessary as an early childhood teacher for me to commemorate the end of the original Wiggles :).
My opinion is they should have disbanded The Wiggles rather than replace a majority of the band (though I'm willing to be proven wrong). I'm clearly a traditionalist - I couldn't really enjoy The Wiggles when Sam replaced Greg! so I don't think having 3 new Wiggles will be any where as good as the original 4. And unless I'm mistaken they don't have early childhood degrees like most of the originals do - which I think is a key to The Wiggles success; they get kids.
Carols in the Domain was on last night and I sang along to the Wiggles mix with all the other people.