Oh, and I'm sorry I should've mentioned one important detail -- they're not paying me anything, and they don't expect anything. This is for fun, both for me and for them. So, a "regular" client (as directorik points out) would want me to get extensive footage of the ENTIRE event.
You are so, so, so wrong.
I have never shot a wedding for pay. I only shoot weddings for friends
and I've only done four. The shoot isn't for fun for you or them - if you
want to have fun shooting at your friends wedding make sure they hire
a pro to videotape the wedding and you can have fun. They will get a
kick out of what ever you offer.
But if you are the only wedding videographer they are going to want the
event captured for posterity - not for fun. Do not confuse the two. Even
if they say over and over and over that this is just for fun and they are
not expecting a "wedding video" I can tell you she is expecting a
WEDDING VIDEO.
This is a project fraught with unexpected, unforeseen pitfalls , disappointments
and hurt feelings. I know this from personal experience and from talking to
several dozen friends who have shot their friends (or families *GASP!*)
weddings. I have shot an additional six wedding as "the friend with a camera"
and each of those turned out very well. Years later (decades later) my video
is the one they go back to. But the big but is; they must have the "real"
wedding video, too. That's the one they cherish.
If you are the only person getting video - stick to the traditional wedding
video. No matter what they (she) are saying now, that's what they will cherish
in the future.