I'm wondering if nervous ripples are running through the players union?
Just imagine if this Astros experiment pays off. The bottom will drop out of the high-priced free agent market*.
* Which is a good thing. Unnecessarily, exaggerated, stupid money for "name" players just drives up the cost of everything from tickets, to beer, to corn dogs, to carriage rates for cable networks all the way through to demands for new edifii of greed at taxpayers' expense. Eventually, just like the NHL, there's a breaking point when all the revenue has been maximised and the product can't sustain any further increase in operating cost.
It's long overdue for sports, especially one as (relatively) gentle as baseball that does not carry high risk of career-ending injury, to reign in salaries and make it affordable again for Joe Public, and not just the corporate overlords who want to sell whatever shit they're hawking, ironically, to that same Joe Public who now can't afford to go to the games and can only watch it on TV...maybe.