Large orchestral scoring sessions aside I doubt they get as much revenue these days from "major label" clients.
And what are "major label" clients these days anyway? Winners of X Factor mostly...
How many cribs and studio tours show huge centrepiece consoles that are mostly window dressing as they are only much use for tracking as most of the Pro Tools sessions are best served on controllers.
Exactly, on all counts. And even if it looks nice as a centerpiece, you just can't have it sitting there if it's not functional. Those big old consoles are huge liabilities these days. Repair costs are astronomical. Something's always going wrong. They throw off a HUGE amount of heat (which needs to be compensated by a huge amount of HVAC), and they need racks of antique computers churning away in machine rooms. And these days, most engineers would want to be selecting specific boutique pre-amps, rather than using the built-in preamps. So, how much of the console are you really using, anyway?
So, for the owners of that facility, if they're looking at the need for major console changes and room re-configuration, and then throw in some other items that might need work (HVAC, new roof, foundation work, windows, electrical, decor, etc.) you've got a massive money pit, and there's always a big expense looming on the horizon. Meanwhile, decently equipped project studios are gobbling up most of the bread and butter work.
In the future, I think the only way to have a facility to record large orchestral sessions is going to be a multi-use concert hall. The same hall, with excellent acoustics, will be used for recording purposes and for concerts (with creative scheduling, and people that can rapidly change the stage over). The facility will have a well-equipped control room. That way, the recording side of things doesn't have to completely pay for the building and maintenance costs. There are already facilities like this (there's a nice one in Olomouc, Czech Republic) that does tons of orchestral recording in the same space used for concerts. Lots of revenue streams coming in to keep that facility in good condition.