In reply to Michael Hood:
Maybe less so in the 8a and above band (though there's still a good amount), but I imagine there are many in the 7's who might like find it a useful addition.
As an example, when I go on a trip I generally look for routes 7a-7c+. And I like to look at the topos, try to work out what looks good, and then scan through and check the grade of it. I often find a line that looks great, and it's got a black label, which then turns out to be in the 8/9's and way out of my league.
It's also a bit annoying when you visit a crag that's all 7a+ and above, there could be 50 routes but there's no way to distinguish between them on a topo.
Re trad and bouldering, I don't actually own a RF guide with them in (other than Peak lime but I just aim for the sport sections...). But it's a fair point.