I didn't read all the posts but the 80prs, as far as I know, doesn't have the pico fuse issue. Even if it did, the simple thing to do is disconnect the negative battery terminal on your battery and then you don't have to worry about it blowing.
I've had the 800prs, 9887, 99prs, and eclipse 7100, and I prefered the Pioneer units better. The eclipse probably had the best sound but had less processing options than the alpine or pioneers and I hate the UI. The pioneer units are a little more laid back sounding than the other units but it's not bad and the I really like the UI on them. That's why I have a 80prs waiting to be installed here, hopefully it's as nice as the 800/880prs units.