It's great the Wiggles are such a phenomenon OS now. I was taking my kids to concerts when they were little, back in the mid 90's. First concert we went to was held at a PCYC and cost $5 for adults, $3 for kids. Last one I took Jorge to was at the convention centre in the city and was about $35/$20.
That concert was the highlight of Jordie's young life tho. Early in the morning we went to Nana's and got real roses out of her garden. When Dorothy came out, there was this horde of kids storming towards the stage and Jorge was one of only 3 kids chosen to go up on stage and give his roses to Dorothy. We always suspected it was cos his were real, and most of the others were crepe paper concoctions.