Oh, I totally get that!! I nearly always try for a BB reservation when I go to
Disneyland, especially if we're celebrating a birthday. There's just something very special about it for me. There are those who don't think it's worth it, but I'm not one of them. Overpriced? Yeah, if you're only talking about the cost of the food, but it's so much more than that.
The advice above was good. Get there early (whenever they open), request a waterside table, and if it's important to you, say you'll wait for one. They may have a nice table that is close but not *exactly* waterside. I had an 11:10 reservation a few weeks ago and we got the last waterside table, so it's possible you'll get one but if you've told them early that you'll wait, you'll have a better chance, depending on the size of your party. And if they don't have anything, decide if the wait is worth it, because it's likely you won't get waterside until the first round of diners begins to finish up and leave. But it's also possible they have some no-shows or latecomers for the earlier times and they'may be able to accommodate you fairly quickly.
I'd say get there early and give it a try! Good luck!!