Great video. Reasons why I personally went with the V10 even though it was really a bit of a stretch for my budget at the time:
1. 8700 RPM redline instead of 8200.
2. Most of them don't have the dreaded frame concerns since they came out around the time the issue started getting rectified.
3. Much easier to find the right spec since there's more V10s out there than V8s.
4. Going along the lines of #3, a lot of the V8s even in the later years don't come specced as well, such as a lot of the carbon options. This may be that V8 buyers are more budget conscious.
5. The relatively common AC compressor issue doesn't require engine out by the book for the V10.
After owning the car for a few years now, I can add the following:
1. The initial difference of 20k that you had mentioned between the V8 and V10 only seems to have widened. I bought my car around the time that you were tentatively selling yours.
2. When other people ask if it's the V8 or the V10, it's less of a disappointment, though this isn't really too important. Who cares what other people think anyway?
3. Maybe it's a psychological thing, but I do like that I do have the higher redline on the V10. I think I personally would've regretted going with a V8. At this point, I can safely say that there's not really any other cars that I want to step up to, being that one of my criteria is having a manual. The only thing that could provide me with a potentially better experience is a manual F430 or something, but is that 2 or 3 times the car as its price tag would suggest? I don't think so.