I can understand that, pdonket. Which is why it's good you're doing the research. Don't forget, you and I are separated by almost 4 decades, so I'd expect you to be a better judge of what the younger crowd is going to like.
So, after contradicting myself 40 times in the above paragraph, I think it's all about what you're feeling at the time, occasionally I think a flashy case would be cool, but then sometimes I would rather go with a laid back more professional looking case. Whatever makes you happy!