When you think of all the things you could spend money on for your wedding, don't skimp on the important things. Prioritizing your list is very important.
The cake is delicious, that's for sure. But it only lasts a few moments. The limo is fun, I know, but once you get out, it drives away.
If needed, cut some things, or at least spend less on them, so that you can afford to make sure you have your photography and video covered. Because after all, your photos and video - your memories - are so precious. Don't sacrifice the most important things!