Granted oldies might produce higher numbers, it seems All News, much like Sports Talk, does well financially regardless of Arbitron 6+ numbers. We need to keep in mind 6+ numbers really don't tell the story. You can have low 6+ numbers but be strong in your target demographic.
Oldies is something I'd like to hear as well but since all stations on the dial can't be at the top of the heap, it boils down to revenue and revenue potential.
It would be interesting to know if News 92's monthly operating expenses versus revenue makes sense. My initial thinking, as uninformed as it is, is that News 92 is making it financially.