For those of you interested, here's what's up with the broken battery door on my Nikon Coolpix 990…
I called the Nikon company. A guy there said, "Yeah, those break a lot." Said to send it in for repairs and they'll give me an estimate, which will likely be in the $150 range. With no guarantee it won't break again tomorrow.
I called the local Nikon authorized service shop. A guy there said, "Yeah, those break once in a while." If I drive it out to Encino and then come back a few days later, I can get it fixed for around $90. With no guarantee it won't break again tomorrow.
I called a large camera shop that's just down the street and has a repair division. A guy there said, "Yeah, those break a lot. If you bring it in, we can fix it for around $90 but it really isn't worth it. That camera's getting to be obsolete and I wouldn't put any more money in it. We sell a black paper tape for around $5 a roll that people have used to hold the camera door shut. It's not perfect but it'll let you use the camera.
Guess what I'm considering.