Even if this happened, it would kill off county grounds such as Hove.
There would be an overall reduction in the number of games due to the reduced number of counties. That reduced number of games would in turn be split between, say, 3 main bases - eg Southampton, Canterbury, Hove. So Hove would host something like 1 or 2 county championship games per year. On that basis, operating a cricket ground at Hove would be financially unsustainable. And the effect on the outgrounds - in Sussex's case Eastbourne, Horsham, Arundel - would be terminal.
Maybe I'm a reactionary old stick-in-the-mud, but I don't care. My county team has 170 years of rich history (albeit that it's not been marked by much success until recent times), I love the place, and I wouldn't want to throw it away in favour of a tacky IPL-clone model of franchises.
For these reasons, Penguinissimo, extremely highly though I rate very much of what you write, I think you're dead wrong about this one.