OK, have long have you got...
Firstly, no, it's purple Wiggle (Lachy) and yellow Wiggle (Emma) who are married. Simon is the big, unnecessarily tall Wiggle who does all the weird singing in the random deep voice.
I am 41 and without a word of a lie, my first concert experience as an adult was seeing the Wiggles (the original line up) in Melbourne. I took my nephews who loved it. Then years later, I took my DS now 7 to see them at Wembley.
My children don't seek out the Wiggles DVDs any more, but when they do (or when I put one on for the memories) they are ENTHRALLED. I will take them (now have DS4 as well) to the concert this summer and I know they'll love it.
I don't get the Anthony (Blue wiggle) love though. He was/is certainly good looking, but I don't think I can ever get over his treatment of Sam (the second Yellow wiggle after Greg, the first yellow wiggle left due to ill health then was ceremoniously displaced by the first Yellow wiggle again for reasons which I wouldn't want to speculate upon ) In fact, even Murray (first Red Wiggle) who I always thought had a kind heart, treated Sam badly and my love for the wholesome Wiggles never really recovered.
Anyway, yay, I can't wait to take my DS's as, although they'll never replace the real line up, I think they're great. And they remind me of home!