We got married in our backyard, self "catered" by our favorite BBQ joint, spent maybe $500 on food, $500 on wine (and had plenty of leftovers), $200 on Justice of Peace, and maybe $300-500 on decorations, utensils, and the grocery store cake.
Doesn't make us love each other any less or any less happy.
We don't have a ton of pictures of the event, and what we do have is cell phone and point-n-shoot cameras. Maybe I'll care 30 years from now, but I doubt it.