My sister wants to go in on an outdoor projector (and screen) for my mom for Christmas. Anyone have any sort of advice/expertise/opinions on this sort of thing? I've done some preliminary research on it and the two things most commonly said are 1) high lumens are especially important for outdoors, and 2) don't worry about the resolution too much, you're usually far enough away to not have any noticeable difference.

I think this is looking like a strong preliminary candidate, or maybe even the SVGA version of it.

I'm mostly struggling between the tech perfectionist in me wanting to die at the thought of buying anything that's still running 800x600 resolution and knowing the fact that she won't use it more than 3-4 times a year at most making it hard to justify spending $120 more to bring it up to 720p capabilities.