Honestly, I would have died of embarrassment if my guests had left my wedding hungry. I can't... I can't begin to imagine HOW some b&gs do this without any shame.
My wedding was done on the cheap. Like, really cheap. Cheap venue, the dress was cheap, the suit was cheap. Some flowers and white tablecloths on the tables. A decent local band played for a bit, then it was iPod connected to a speaker.
But. There was food. Lots of food. Lots and lots of food. Prepared by myself, my mum, my grandmother, aunties and friends... took us a long time to cook it all, but there was enough to feed an army!
Also, lots of booze. We bought all the booze. It wasn't expensive fancy stuff, but there was a lot of wine and lots of vodka and lots of soft drinks, more than enough for everyone.
Our guests had a great time, or so they say - considering that the party was still in full swing at 1am, I think it was good!
But yeah. I can't imagine the shame I'd have felt if I didn't provide the food and the drinks.