Definitely. I've been to small weddings, budget weddings, backyard weddings, and weddings that were just a reception/party (my high school best friend didn't have a wedding ceremony - just went down to the courthouse - and then her "wedding" was a casual backyard party) but ALL those weddings cost a surprising chunk of money. Food costs money. If the event is even partially catered, that will cost you. If you want to buy a bunch of food and prepare it yourself, that will cost you. Professional wedding cake? hat will definitely cost you, even if it's small and simple. Yes, venues are not cheap, even outdoor spaces. My cousin got married on the lawn of the corporate building where my aunt works because my aunt was able to finagle free use of the space. They couldn't afford anything else.

I absolutely reccomend spending money on a decent photographer. Don't hire a friend unless they can show you a portfolio. My parents' wedding photographer was my grandparents' neighbor who was "good with a camera" and their wedding photos are shit. My aunt did the "Everyone just take lots of photos and send them to me!" thing and her wedding photos are also shit.