I'm not an expert on the P+S other than my experiences, I've gone through 3 Sony Cybershots, all of which have lost the ability to focus. My friend's 5 year old Canon SD-850 IS is still working great, and takes good pictures (for a P+S, I've moved on to a DSLR and my phone for P+S stuff) so I think you're on the right track as far as series is. Maybe a more upgraded version?