My wedding was about £11-12k which included 110 day guests with loads of booze and food. That value also includes both rings and the honeymoon, a live band and all officients, photographer, flowers, dress, shoes, 6 bridesmaids dresses, shoes, hair and make up, grooms suit and 4 or 5 usher/best man suits, oh we also had a mobile ice cream cart come through the day for everyone to have ice creams with all the works while the booze and photo bit was happening.
We didn't spend money on chavari chairs or on chair covers.
I did the sweet table myself and got in props in case people wanted to take photos but didn't hire a photo booth.
I put selfie sticks on each table (everyone has a mobile with a camera) which went down well.
I would have spent more on the photographer and paid for a videographer and it's the only thing I'll regret from my wedding to be honest.
Also, my florist died not long before my wedding so had to get another local florist to help me out so in the end I only had bouquets and button holes and the table centrepieces were bought from IKEA.... Lanterns and candles at less than £10 a table with decent resale value!