My oldest sister's wedding was around about 115k
My middle sisters is probably going to be about 10-20 k more than that
I have no clue how much mine is going to be. I actually just started talking to my SO about choosing a venue that way we'll have it early. I already know which venue I want, I just have to talk my SO into going with that venue and making him think it was partially his idea to choose it

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My wedding will
likely be the most expensive of my sisters. We also have quite a few plane tickets to buy for my SO's close family to attend.