Very true. And Darth Vader had 2000 EXs as well.
And once people start breaking their products, that means even less than 2000. I've seen several broken Vaders on eBay.
But the difference is Fett had 2000 Regulars and Vader has 2,500 regulars. Batman has 7,500.
I think Batman's EX will be coveted down the line because it's already been proven that 2000 EX for popular characters is something that works, but the regulars probably won't see an increase in after market value for a long time.
Overall 2000 ES for popular characters is no more laughable than 1000 or even 500 ES for characters and designs that really can't support that ES. Case in point, Ganondorf from F4F. It's a great statue I'm happy to own, but the 750 EX was too much it.
Don't forget about all of the custom jobs too