People go to Calaway Park because that's all there is.
There's no comparison whatsoever between Calaway Park and Canada's Wonderland, but the park is clearly geared more towards kids and smaller rides and for what it is, it's fine.
It reminds me more of a park like Santa's Village in the US and is priced similar with similar rides.
https://www.santasvillage.com/park-info-tickets/
It's nice that we have it considering we are a smaller city, but it's still a big meh.