Not sure if this is really etiquette related...
My mom is footing the bill for the wedding, minus one or two things FI and I are paying for. I understand that since she's paying for the wedding she gets a huge say in what goes down. My problem is, is that she's not really sticking to the budget that she set... I get that it's her money, but some things she's going over board on for no reason.
We're having a photobooth at the wedding, and there's only one company that serves our area and they charge $600 for 2 hours!! This seems like highway robbery to me (it's a pretty sweet set up, they bring props, people get a copy of the pictures right away, but still...$600 for 2 hours?! Give me a break!) so I started looking for alternatives and opted to DIY the photobooth; found a great iPad app, and when I worked it all out, found out we could do it ourselves for around $100. My mom hated this idea, said it would look cheap. I told her it was ridiculous to shell out $600 for 2 hours, that $500 of that money could be put towards something else fun like a bigger DJ package, or a candy bar, especially when if we did the booth ourselves, the time would be unlimited with it for the guests!
We're kind of at an impasse on what we're doing, she said it would be her present to us, and that it wouldn't be part of the budget but totally seperate... kind of defeats the point of having a budget, especially considering she's done this with a few other things she's bought for the wedding. I don't know how to go about telling her I do not want her spending that kind of money on something that's only for 2 hours... it just doesn't seem worth it to me... But again, it's her money... so do I ask her politely not to book the pro/expensive photobooth or just let her do what she likes?
