Well I keep wanting to use the Opera browser as my surfing application, but I just can't bring myself to using it. Even though it follows all the standards strictly, not all web developers do that and I am constantly finding that I am unable to get several of my most surfed web pages to work on it.
In fact, there is a known flaw in Word Press that hinders the admin area of my blog if I was to use Opera. One example is that the lines don't wrap in the box that I am writing this post.
Opera, you just need to be more functional with webpages so you can gain wider acceptance. I think that the demand is there.