https://bleacherreport.com/articles/10076136-athletics-reach...
Basically the plan for the stadium is $1.5B, with $400M of that public financing, but there isn't even a specific bill in the legislature, so the debate is kind of just beginning.
It's interesting to compare that the valuation of the A's is "only" around $1.2B to begin with:
https://en.wikipedia.org/wiki/Forbes_list_of_the_most_valuab...
I don't know much about Nevada politics so I don't know if this is likely to pass or not. The A's don't seem to have a great alternative lined up for staying in Oakland, so my personal guess is that they do end up going to Vegas, perhaps with the public funding negotiated down from the current request.
The US market is much bigger but also has more options. NHL is Canada's "home sport" and their are only 7 teams, even though NHL has less revenue than MLB by a lot.
Are the A's worth more of course, but I can see how it might be closer than one might initially think.